Comparison

HeartNotes vs Otti

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

HeartNotes

Features
Read full description

HeartNotes is a quiet, end-to-end encrypted app just for the two of you – for shared moments, small gestures, and real connection as a couple. No feeds, no likes, no distractions. Private by Design All content is encrypted directly on your device before it ever leaves your phone. Even we can't read it. You can also lock the app with Face ID, Touch ID, or fingerprint for extra peace of mind. Share Your Mood A simple daily check-in: how are you feeling today? Add a note, share what's on your mind, and gently let your partner know what you need. No pressure, no judgment. Send a Heart A press on the heart in the app – and your partner feels in that moment that you're thinking of them. A small gesture that often gets lost in everyday life. Photo of the Day (with HeartNotes Pro) A new theme every day. You both upload a photo and see them side by side – your take on the same day. React to each other and collect your shared moments. Love Letters as a Surprise Write messages your partner won't discover until later – in the next few days, in a week, or a few weeks from now. You choose the time window, the exact moment stays a surprise. "How Well Do You Know Me?" One question a day about yourself. Your partner tries to guess your answer. Discover something new about each other every day – even after years together. Your Relationship Chapters With every shared moment – every photo, every question, every letter – your chapter grows. A timeline of your moments, moods, and letters that gets richer every day. HeartNotes isn't an app that pushes you toward streaks or floods you with notifications. It's there when you need it – and stays out of the way when you don't. HeartNotes is free to use. With HeartNotes Pro, you unlock all features – available as a monthly or yearly subscription, cancel anytime. Subscription details HeartNotes Pro is an auto-renewing subscription, available as a monthly or yearly plan. Both plans include a one-month free trial. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours prior to the end of the current period. You can manage or cancel your subscription at any time in your Apple Account settings. Any unused portion of a free trial is forfeited when you purchase a subscription. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms of Service: https://heartnotes.at/en/terms/ Privacy Policy: https://heartnotes.at/en/privacy-policy

About

Otti

This app serves as a private digital scrapbook for couples to preserve shared memories. It allows users to save photos, stories, places, and voice notes, creating a timeline of their relationship. Designed for two, it offers a quiet alternative to social media for documenting everyday moments and significant events.

Highlights
  • Shared journal for two
  • Save photos and stories
  • Record voice notes
  • Track places visited
  • Relationship timeline
  • PDF export option
Features
Read full description

Otti is the cozy app for two. Play games that show how well you know each other, make your partner a song made just for them, and keep your photos and stories in a private book only you two can see. PLAY TOGETHER Guess Me and This or That turn your relationship into a playful round. Play together across a room or across the world. MAKE THEM A SONG Tell Otti what you want to say. We write the lyrics, sing it, and wrap it as a gift they can open. Every song lives in your book. KEEP YOUR STORY Save photos, words, voice notes, places, special days, and the little joys in one shared journal. Revisit every photo full screen, follow the days you remember together, and see your places on a map. MADE FOR TWO Pair with your partner once and you share one book. No followers, no feed, no audience. Otti is private by design. FREE • Your shared book, memories, voice notes, and places • Two game packs for each game, to replay anytime • Your first song OTTI PLUS • 5 new songs every month • Every game pack and unlimited rounds • Up to 9 photos in a memory • Your book as a designed PDF keepsake Need more songs? Buy extra songs anytime. They never expire. For every couple: dating, engaged, married, or long-distance, paired up on Otti. Questions: hello@meetotti.com Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://meetotti.com/privacy

Screenshots

HeartNotes4 screens
Otti4 screens

Verdict

The call

The clearest difference is update cadence: Otti at every 5 days against HeartNotes's fortnightly. HeartNotes's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. HeartNotes sells 2 in-app purchases, starting at $1.99 per month and Otti sells 4 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

HeartNotes ships an update fortnightly, Otti every 5 days. The most recent releases landed on October 9, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 8 level
HeartNotes versus Otti: the parameters behind the verdict, then further details
ParameterHeartNotesOtti
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyFortnightlyEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPod — betteriPhone
Requires iOS15.0 — better17.0
Further details — not scored
Size14 MB28 MB
Age rating17+4+
DeveloperMichael LamprechtKOLADE VICTOR ABOBARIN

In-app purchases

2 purchases

HeartNotes

Subscriptions2
  • HeartNotes Pro - Monthly1 Month trial$1.991 Month
  • HeartNotes Pro - Yearly1 Month trial$17.991 Year
4 purchases

Otti

Subscriptions2
  • Otti Plus Monthly$6.991 Month
  • Otti Plus Yearly$59.991 Year
One-time2
  • Single Song$1.99
  • Five Song Pack$5.99

Questions

Is HeartNotes free?
HeartNotes is free to download, with in-app purchases available.
Is Otti free?
Otti is free to download, with in-app purchases available.
Do HeartNotes or Otti have ads?
Neither HeartNotes nor Otti shows ads.
Which is updated more often, HeartNotes or Otti?
HeartNotes ships an update fortnightly, and Otti every 5 days. Most recently, HeartNotes was updated on October 9, 2026 and Otti on October 28, 2026.

Other comparisons