SincereNotes vs Kin
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SincereNotes
This app helps you stay connected with the people who matter most by providing personalized reminders for important dates and check-ins. It offers message suggestions and support for difficult times, ensuring you never forget to reach out.
- Personalized reminder schedules
- Customizable message suggestions
- Grief anniversary support
- Illness and chemo check-in reminders
- Human-centric message sending
- Intentional, personal reminders
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How many times have you thought about reaching out, but life got in the way? A missed check-in, an unsaid "thank you," a "thinking of you" that never got sent. SincereNotes is the bridge between wanting to be thoughtful and actually being there, helping you keep in touch with the people who matter most. Most of us care deeply about our friends and family, but we're busy. SincereNotes isn't a productivity tool; it's a relationship tool. It helps you stay consistent, thoughtful, and present for the connections that matter. NEVER FORGET SOMEONE AGAIN Life moves fast. Birthdays pass. Grief anniversaries go unacknowledged. A friend going through chemo wonders if anyone still remembers. SincereNotes is your personal relationship reminder, making sure you show up for the people you love, right when it matters most. Never forget someone again. Whether it's a birthday, a grief anniversary, or simply a monthly check-in to stay in touch with a long-distance friendship, SincereNotes keeps you close to the people you'd otherwise drift from. KEY FEATURES • Personalised Rhythms: Set custom reminder schedules for different people — daily, weekly, or monthly. Your personal relationship manager, built around real life. • Message Assistance: Never face a blank screen again. Get thoughtful suggestions and prompts you can customise to your own voice. A personal message scheduler that keeps your connections warm — use it as your own personal CRM for the people who actually matter. • Grief Anniversary Support: Mark the dates that are hard — grief anniversaries, bereavement milestones, loss check-ins. SincereNotes reminds you to reach out when a friend needs it most, even when life makes it easy to forget. • Illness & Chemo Support: Staying connected with someone through treatment is hard to maintain consistently. SincereNotes helps caregivers and caring friends never miss a moment that matters. For anyone supporting a friend or family member through illness, it's an essential connection tool. • Human-Centric Design: Not a bot, not a script. Every message comes from you — SincereNotes is your personal message scheduler, not an automated sender. Real relationships, always human. • Intentional Reminders: We work in the background so your loved ones never feel forgotten. Stay in touch effortlessly, with reminders that feel personal, not automated. WHO IS SINCERENOTES FOR? SincereNotes is for anyone who values deep relationships but needs a system to act on them. If you've ever said "I meant to reach out", this app is for you. It's for the friend supporting someone through bereavement who doesn't know when to check in. For the busy parent staying close to grown children. For the caregiver tracking treatment schedules. For anyone who knows that keeping in touch is an act of love, not just convenience. Think of it as a personal CRM and relationship manager for your closest connections, a thoughtful, human alternative to letting friendships quietly fade. Download SincereNotes and start building the relationship habits that keep the people you love feeling seen. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Kin
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Your friends' lives are too interesting to stay in their camera roll. The new sport. The trip last weekend. The café they've started going to every Saturday. The random Tuesday that somehow turned into a story. Most of these moments never get shared. Not because they're private, but because they're too small for posting to current social media or too casual for a text. So they stay in their camera roll. Kin gets them out. - - - HOW IT WORKS Every day, Kin pulls three photos from your camera roll. You pick one. That's the post. Then Kin adds the caption. Dry, sharp, observational. The kind of thing that turns an ordinary photo into something your friends actually want to react to. Your circle does the same. Everyone's daily photo lands on the same feed, captioned the same way. You discover yours alongside theirs, with just enough context to react: a line, a place, a day. - - - FOR PEOPLE WHO ACTUALLY KNOW YOU No followers. No influencers. No public audience. No algorithm deciding what matters. Just friends and family. - - - YOUR FRIENDS HAVE BEEN BUSY More happens in your friends' lives than what gets posted. Kin is the easiest way to find out what. Your friends. Your circle. Your camera roll. Terms and Conditions: https://amonstudio.io/terms
Screenshots
Verdict
The clearest difference is in-app purchases: Kin at none against SincereNotes's 2. Kin also leads on update cadence (every 4 days vs fortnightly). SincereNotes's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price and ads 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
Both are free to download. SincereNotes sells 2 in-app purchases, starting at $4.99 per month. Kin asks for nothing beyond the download.
SincereNotes ships an update fortnightly, Kin every 4 days. The most recent releases landed on September 10, 2026 and September 7, 2026 respectively.
| Parameter | SincereNotes | Kin |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Fortnightly | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 88 MB | 31 MB |
| Age rating | 4+ | 17+ |
| Developer | Sincere Notes | Amon Studio |
In-app purchases
SincereNotes
- Monthly Subscription$4.991 Month
- Premium$29.991 Year
Kin
No in-app purchases









