Sumi vs Slideshow AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sumi
This app helps you reduce phone usage by setting timers for breaks. It alerts you if you touch or move your device during the break, aiming to boost productivity and mental well-being.
- Timed phone breaks
- Movement alerts
- Productivity enhancement
- Mental health improvement
- Simple interface
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The most beautiful thing an app can do is get out of your way. Sumi sits quietly on cream paper, holds your attention for an hour, and asks for nothing back. Set a length. Put your phone face down. Pick it up before the time is done and the session breaks — not as a punishment, but as a commitment kept. No ads. No notifications. No streaks-as-slot-machines. No weekly subscription trap. Just deep work, and the quiet record of the hours you've given it. — THE RITUAL — Set an intention and a length. Put the phone down. Sumi keeps watch: lift it, or leave the app, and the session ends. When the time is held, the line completes, your lifetime hours grow, and the session is logged. Silent while you work. Quietly rewarding when you finish. — A CALM LEDGER, NOT A GAME — The number that only goes up: your lifetime hours focused. A streak, if you want one. A week that fills, a line that climbs. No characters to feed, no points, no dark patterns. Progress you can feel, with nothing engineered to hook you. — MADE FOR DEEP-WORK PEOPLE — For writers, developers, designers, students of a craft — anyone who already romanticizes focus and resents apps built to fracture it. Graphite and cream. Monospace. Paper grain. A single calligraphic mark. — PAY ONCE — Your focus shouldn't be a recurring charge. Sumi is free to use, with an optional one-time Lifetime unlock (or a subscription, if you prefer) for custom lengths, full history and trends, themes, and session intentions. Put the phone down. Pick the work up. ——— Privacy Policy: https://dayonefoundry.com/sumi/privacy Terms of Use (EULA): https://dayonefoundry.com/sumi/terms
Slideshow AI
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Use the power of AI to create slideshows in seconds with Slideshow AI. Note: this app requires a subscription in order to be used, you can subscribe quickly and easily in the app (and cancel any time if you wish)! ----------------------------------------- Terms of Use https://www.yolleg.com/terms/slideshow Privacy https://www.yolleg.com/privacy/slideshow
Screenshots
Verdict
The clearest difference is iOS requirement: Sumi at 16.0 against Slideshow AI's 26.2. 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
Both are free to download. Sumi sells 3 in-app purchases, starting at $5.99 per month and Slideshow AI sells 2 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Sumi | Slideshow AI |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 5 days | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 10 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | David Park | Yolleg Ltd |
In-app purchases
Sumi
- Sumi Pro Monthly$5.991 Month
- Sumi Pro Annual7 Days trial$24.991 Year
- Sumi Pro Lifetime$49.99
Slideshow AI
- Main Sub Month$12.991 Month
- Main Sub Year7 Days trial$69.991 Year









