Reverse Star vs KidNote
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Reverse Star
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Reverse Star - make your audio play backward in seconds! Easily reverse songs, voice notes, or any sound. Create unique effects and backwards speech — it’s simple and fun! Features: Instantly reverse any audio Loop effect for endless playback Create a collection of crackling sounds in reverse Share on social media Works offline Discover the magic of reversed sound with Reverse Star! Get Premium Access: enjoy unlimited reverse audio playback and an ad-free experience! Subscription: Payment will be charged to iTunes Account at confirmation of purchase. Subscription with a free trial period will automatically renew to a paid subscription. Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Account will be charged for renewal within 24 hours prior to the end of the current period at the rate of the selected plan. Subscriptions and auto-renewal may be managed by going to Account Settings after purchase. You can cancel your subscription or free trial in the iTunes settings at least 24-hours before the end of the free trial period. The cancellation will take effect the day after the last day of the current subscription period and you will be downgraded to the free service. Subscription options: - Weekly Price: $ 5.99 - Lifetime $ 19.99 For other currencies, the price corresponds to the same tier on the App Store Pricing Matrix. Support - gerlakvladimir217@gmail.com Terms & Conditions - https://sites.google.com/view/reverse-star/terms-conditions Privacy Policy - https://sites.google.com/view/reverse-star/privacy-policy Eula - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
KidNote
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You blinked. They grew up. You meant to write it down. The first steps, the way they laughed, the words they couldn't quite say yet. But life was busy. And now the details are fading. KidNote is a growth diary that turns your records into AI-generated letters — so the moments you lived through become something your child can read one day. 【What changes】 • No more "I wish I'd written that down" regret • AI generates heartfelt memory letters from your growth records • Milestones, height, weight, and photos — all in one place 【What you can do】 - Log growth records (height, weight, milestones) - Add photos and diary entries - AI generates memory letters from your records - Share with family members - Birthday and milestone reminders "I'm not good at keeping diaries" — even one line a day builds into something beautiful. The AI takes care of the words. "Do I need to pay?" — Logging records and photos are free. Premium unlocks AI memory letters and more. Price shown before you commit. 【Premium Subscription】 See in-app for full details. Subscriptions auto-renew unless canceled at least 24 hours before the end of the current period. Privacy Policy: https://kid-note-prod.web.app/privacy.html Terms of Use: https://kid-note-prod.web.app/terms.html The moments pass. Make sure they last. 【From the Family & Memory Series — Related Apps】 If you're capturing your child's growth, you might also need: - Petal Pages (beautiful growth album — memory layouts) - Pet Log (log your family pet's milestones too) Search each app name on the App Store.
Screenshots
Verdict
The clearest difference is update cadence: KidNote at every 3 weeks against Reverse Star's every 3 months. KidNote also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.4). On price, ads and in-app purchases 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. Reverse Star sells 2 in-app purchases, starting at $5.99 per 7 days and KidNote sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
Reverse Star ships an update every 3 months, KidNote every 3 weeks. The most recent releases landed on October 30, 2026 and November 9, 2026 respectively.
| Parameter | Reverse Star | KidNote |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.4 | 15.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 120 MB |
| Age rating | 4+ | 4+ |
| Developer | Vladimir Gerlak | Tomohito Kii |
In-app purchases
Reverse Star
- Reverse Star - Weekly3 Days trial$5.997 Days
- Reverse Star - Annual$19.991 Year
KidNote
- Monthly Premium7 Days trial$4.991 Month
- Yearly Premium$34.991 Year
- Lifetime Premium$89.99









