The best birthday, gift and relationship apps compared, and an AI that remembers the people you love

Why most birthday and relationship apps fall short

Being there for people is mostly small things at the right time. The card that has to go in the post two days early. The text before a friend’s driving test, and the right one after. The table for Dad’s 70th that has to be booked the morning tables open, eight weeks ahead.

Most apps help with one piece of that. A calendar remembers the date. A family organiser keeps everyone’s plans in one place. A wishlist app tracks what people want. A personal CRM keeps notes on who you know. The rest still lives in your head, and it lands in the same week as your own plans.

This is also where an app has to be most careful. A good one helps you show up for people. It never messages them without you, and it never treats your friends like a sales list.

What a good app for the people you love knows

• Their dates. Birthdays and anniversaries, ideally straight from your contacts, but also the driving test on Thursday, the new flat and the 70th three months away.
• What they love. Mum loves a real card. Priya collects ceramics from small makers. Dad loves the Italian place by the river.
• The practical details. What they eat and can’t eat, their sizes and wishlists, the cat that makes lilies a bad idea, and what you gave them last time.
• What they’ve said and shared. The friends who offered to help, and the plans they’ve chosen to share with you.
• Your week. When you’re free to call, where you’ll be, how long the post takes and what’s left in your gift budget.
• When to ask you. Always, before anything reaches them.

What it should do for you

Remembering is only half of it. A good app for the people you love should:

• Get things ready in time, not remind you on the day: the card posted to arrive, the table booked the morning tables open.
• Find gifts that suit them, inside your budget, and not the same as last time.
• Fit people into your real week: a call on your drive home, dinner on the night your sister is in town.
• Plan around them: food they’ll eat, a plant that’s safe for their cat.
• Ask you first, every time, and use your words, not its own.

The top birthday, gift and relationship apps at a glance

We looked at six apps people use to keep track of the people in their lives: a free calendar, two family organisers, a gift app and two personal CRMs. They’re a selection by reach and relevance, not a ranking, and they do quite different jobs.

App by app

Google Contacts and Calendar

Cost

Free

Where

Web, Android; Calendar on iPhone too

App Store

Calendar 4.5 from 132K ratings

If your contacts live in Google, you may already have a birthday reminder app. Birthdays, anniversaries and other dates you add to a contact show up in Google Calendar, and editing a birthday there changes the contact too. On Android, a new birthday reminds you a week before and on the day by default. Shared calendars and invitations help with plans together.

Worth knowingIt’s a record of dates, not of people: what they’d like, how close you are or when a message would be welcome aren’t part of it, and gifts, messages and payments aren’t mentioned. Contacts has no iPhone app of its own, so the rating above is Calendar’s. Google says Calendar information isn’t used for advertising; if you let Gemini see your contacts, Gemini’s own rules apply.

Cozi

Cost

Free with ads; Gold $39 a year, Max $79 a year

Where

iPhone, iPad, Android, web

App Store

4.8 from 402K ratings

Cozi, a “Shared Calendar & To-Do Lists”, gives a family one account with a shared calendar, shopping and to-do lists, recipes and birthdays, with reminders and an agenda by email. Its Max plan adds AI: a meal planner that uses your family’s cuisine and protein preferences and your schedule, an event import that turns emails into calendar entries, and a recipe creator. Gold and Max cover the whole family.

Worth knowingThe free version shows ads, and its App Store description ties calendar use beyond 30 days to Gold, though its plans page is less clear. Its privacy policy allows advertising and sharing with partners; Gold and Max remove the ads. Which AI provider Max uses, and how it treats your emails, isn’t mentioned, and nor is remembering what each person likes beyond meals.

Elfster

Cost

Free; no subscriptions

Where

iPhone, Android, web

App Store

4.9 from 332K ratings

Elfster, for “Wishlists & Gift Exchange”, says more than 47 million gift givers in over 50 countries have used it. People keep wishlists with the items, sizes and preferences they want, from any shop, and you can run gift exchanges like Secret Santa that respect exclusions and avoid last year’s pairings. It suggests gifts by age, interest and budget, sends reminders and deal alerts, and marking a gift as bought stops anyone doubling up.

Worth knowingIt’s free because it earns from shopping links, including Amazon’s, and ads; its privacy policy allows sharing with advertising partners in ways US law can count as a sale, and says you need permission to add other people’s details. People keep their own wishes up to date, and AI that learns what someone likes isn’t mentioned.

FamilyWall

Cost

Free; Premium $7.99 a month or $44.99 a year

Where

iPhone, iPad, Android, web

App Store

4.8 from 24K ratings

FamilyWall promises “one place for your whole family’s plans”: a shared calendar, lists and wishlists, meal plans, documents, a budget, messages and a family directory, with arrival and departure alerts when people share their location. It syncs with Google and Outlook calendars. Premium starts with a 30-day trial and covers the first five family circles you create.

Worth knowingAI isn’t mentioned in its current product pages: it shares and syncs, but doesn’t learn. Its privacy policy allows advertising identifiers and sharing with partners, and says location can be imprecise or out of date, so it isn’t an emergency locator.

Mesh (formerly Clay)

Cost

Free up to 1,000 contacts; Pro $19.99 a month

Where

iPhone, iPad, Mac, Windows, Android, web

App Store

4.4 from 765 ratings

Mesh, called Clay until March 2026, promises “Every relationship, remembered.” It fills in your contacts and your history with them automatically, from email, calendar, social accounts and contacts, shows news such as job changes, reminds you of birthdays and suggests who to reconnect with. Its AI, Nexus, answers questions from your notes and sources, remembers the conversation, and can add notes and contacts for you.

Worth knowingIt leans towards work networking, and the free plan asks for a card on the web. Its privacy page says it doesn’t sell data or use it for ads, reads email headers rather than the messages, counts iMessage and WhatsApp conversations without reading them, and won’t text anyone for you. Optional AI sends what’s needed to partners including OpenAI, which it doesn’t allow to train on your data.

Dex

Cost

7-day trial, then Premium from $19.99 a month

Where

iPhone, iPad, Android, web

App Store

4.4 from 263 ratings

Dex, which aims to help you “Build stronger relationships”, says more than 30,000 people use it. It keeps notes, family details, important dates and gift ideas for each person, syncs your contacts and your emails and meetings with them, and follows LinkedIn job changes. It prompts you to keep in touch, before birthdays and before meetings, and its AI can research a contact, sum up what you know and suggest a message.

Worth knowingIt’s paid after the trial, needs a card to start, and is built partly for professional networking; its website shows Premium at $12 a month, so check the billing period. It says it doesn’t sell your data or use it for ads. Unlike Mesh, its privacy policy lets it read Gmail messages for your mail search and history, though Google data isn’t used to train general AI models, and it only sends emails you write and choose to send.

Where Retenna goes further for the people you love

Retenna isn’t a contacts app or a family calendar. It’s every lifestyle expert in one mind that knows you, and the people you love run through all of them: your planner books the table, your shopper finds the gift, your nutritionist plans what everyone will eat. It remembers what matters to them, readies birthdays, gifts and visits ahead, and asks you before anything reaches them.

Here’s how the six compare with what Retenna is built to do.

Yes

The maker documents it.

Partly

A narrower version: birthdays you add yourself rather than bring in from your contacts (Cozi, Elfster, FamilyWall); food tastes without allergies (Cozi Max); wishlists without sizes, or meal plans without anyone’s tastes in them (FamilyWall); notes you keep yourself (Mesh, Dex); gift ideas you note down (Dex); or a history built up from your email and calendar rather than from what you choose (Mesh, Dex).

–Dash

Not mentioned in the maker’s own materials. That doesn’t prove it can’t.

The lower rows are the difference. Mesh and Dex remember people well, Elfster keeps wishlists and sizes, and Cozi already plans meals around your family’s tastes. But none of the six mentions planning meals around allergies, readying an occasion with everything it needs, planning people into the rest of your week, or doing things for you inside rules you set. Like Mesh and Dex, Retenna never messages anyone without you; unlike them, it gets everything else ready.

A week with the people you love

It’s Tuesday. Mum’s birthday is on Sunday, Priya’s driving test is on Thursday and Sam has just moved flat, all in the same week as your own plans. And Dad turns 70 in three months. Retenna keeps track of all of them, plans around them, and asks you before anything reaches them.

What it joined upMum’s birthday, and that she loves a real card, from you. Her lunch with her sister until 14:30, from the plans she shares with you. Priya’s test at 09:00 on Thursday, which she shared. Sam’s new flat, and the cat, from what you told it. Dad’s 70th, and the Italian place by the river he loves. Your drive home on Sunday, 15:00 to 17:00. And the £60 left in your gift budget this month.

What it ruled outPosting Mum’s card on Friday, because post takes two days and it wouldn’t reach her until Monday. Lilies for Sam’s new flat, because they’re poisonous to cats. Calling Mum at lunchtime, because she’s out with her sister until 14:30.

Mum’s card arrives in time. Priya hears from you before her test, and after it. Dad’s 70th is booked the day tables open. So you show up for all of them, without keeping a list.

Birthdays, gifts and visits, readied with your other experts

The people you love aren’t a separate list in Retenna. They run through every expert, so the gift, the meal, the table and the journey are planned together, around the week you’re actually having.

When plans change, it rearranges around the people in them. If your brother can’t make Mum’s lunch on the Saturday, it moves to Sunday at the same table, the train moves to Saturday evening and the card is signed by all three of you; telling the family waits for your yes. When a big week at work needs an early night, moving drinks with Sam to next week is a question for you, not a decision made for Sam.

Your other experts plan around the people you love too. Your trainer moves leg day so you’re fresh for Saturday’s hike with friends, and counts the hike as your long run.

The everyday jobs it takes off your hands

Add it up, and this is the remembering that stops living in your head.

How it learns what matters to them

Retenna learns about the people in your life from what you tell it, what they choose to share with you, and what you do. It keeps it in one living model, shared by every expert, and each thing it knows says where it came from:

• Birthdays and dates, from your contacts. Brought in when you choose to connect them, so nothing needs typing in twice.
• “Priya, your closest friend, collects ceramics.” From you, so her gifts come from small makers.
• “Mum loves a real card.” From you, so a card goes in the post, not a message.
• Dad’s sizes, and the walking jacket at the top of his wishlist. From you and the wishlist he shares, so his gift fits.
• “Alex doesn’t eat meat, and Jo is allergic to nuts.” From Alex’s shared plans and from you, so every meal you host works for both.
• “You always make time for family.” Learned from what you choose, so when your sister is in town, dinner comes first and the gym moves.

The more it learns, the less it needs to ask:

1. Day oneIt asks. “Your sister is in town on Thursday night. What would you like to do?” Dinner out, drinks or a night in: you choose, and you plan it.
2. Within weeksIt suggests. “You always make time for family. Dinner with her on Thursday at 19:00, and move your gym session to Friday lunchtime?” One tap.
3. In timeIt decides the way you would. Dinner is booked at the place you both like, near her hotel, and the gym moves. The invite to your sister still waits for your yes.

And it keeps learning. Every plan you keep, change or say no to tells it a little more about the people you love, and how you like to look after them.

Warm, never creepy: how you stay in charge

An app that remembers people has to earn its place. These are the lines Retenna is built to keep.

Anything involving another person always asks firstIt’s the one rule you can’t switch off. Every card, text, gift, booking and favour that reaches someone you love waits for your yes, and a text it suggests, like good luck before a driving test, is in your words.

Only what you tell it, and what they choose to shareIt plans around the people in your life using what you tell it and what they choose to share with you. If Mum’s birthday falls on the Sunday you drive home, it plans a call for the drive, because her lunch plans are ones she shares with you. Bringing in birthdays from your contacts is your choice too, like everything you connect.

A reason and an Undo, every timeEvery suggestion says why: “Post takes two days, so it wouldn’t reach her until Monday.” Say not now, or undo it, and it learns from that too. Keep undoing the same kind of plan, and it says so and suggests a rule.

See, change or forgetWhat it knows about the people in your life is yours to read, change or forget. If Priya stops collecting ceramics, tell it, and it plans from the new fact. You can also export or delete everything Retenna holds about you.

How to choose

If you want one job done well, like birthday reminders, a family calendar or a wishlist, one of these will do it. If you want the people you love looked after as part of your whole life, that’s Retenna.

For one job, done well

• Google Contacts and CalendarFree birthday and anniversary reminders, from your contactsOn iPhone, Apple’s Contacts, Calendar and Reminders do much the same.
• CoziA shared family calendar, lists and recipes, with AI meal planning in Max
• FamilyWallA family’s plans, messages, documents and locations in one place
• ElfsterFree wishlists and gift exchanges like Secret SantaOr Giftful, for wishlists from any shop with private gift claiming.
• MeshRemembering a large network automatically, free up to 1,000 contacts
• DexKeeping in touch, with notes, dates and gift ideas for each personOr Monica, if you’d rather host your own.

For the people you love, as part of your whole life

What to check before you trust one with the people you love

• Their data, not just yours. You’re adding other people’s birthdays, addresses and details. Elfster’s policy says you need their permission to add them. Check who can see what, and whether you can delete it.
• Your inbox and messages. Mesh reads email headers, not the messages, and counts chats without reading them. Dex’s policy lets it read Gmail messages for your mail search. Cozi’s AI turns emails into calendar entries. Check how much an app reads before you connect it. Retenna lets you choose: share just the emails you pick, such as receipts and orders, or connect your inbox.
• Advertising. Cozi’s free version, Elfster and FamilyWall allow advertising uses, and Elfster earns from shopping links. Mesh and Dex say they don’t sell your data or use it for ads. Retenna’s personal shopper never takes commission or paid placements.
• Sharing and location. Family accounts share on purpose, so check who’s in them. FamilyWall says shared locations can be out of date and aren’t an emergency locator.
• Who sends the messages. Mesh says it won’t text anyone for you, and Dex only sends emails you write and choose to send. Whatever you pick, nothing should reach someone you love without you.

How Retenna looks after the people you love

Questions

Sources

Checked 23 October 2026. Ratings and prices are from Apple’s US App Store, except Cozi’s, which are from its own site; everything else is from each maker’s own pages.

• Google Contacts and Calendar: Calendar on the App Store, birthdays in Calendar, significant dates in Contacts, Calendar privacy, Gemini privacy
• Cozi: website, plans, privacy policy, App Store
• Elfster: about, privacy policy, terms, App Store
• FamilyWall: website, privacy policy, App Store
• Mesh: website, pricing, Nexus, security and privacy, App Store
• Dex: website, pricing, security, privacy policy, App Store
• Also mentioned: Giftful, Monica, Apple Calendar

Spotted something out of date? Email [email protected] and we’ll fix it.