TesseraClock vs Keep
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TesseraClock
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TesseraClock is a clock widget app that perfectly combines simplicity with total customization freedom. With fully customizable background and text colors, you can design the perfect widget to match your home screen's aesthetic. 【A Wide Variety of Widget Sizes】 Supports Small, Medium, and Large widgets for your Home Screen, as well as Circular, Rectangular, and Inline widgets for your Lock Screen. It is also fully compatible with iOS StandBy mode, allowing you to check the time across all your displays. 【Complete Customization Freedom】 ・Choose any background and text color using the color picker. ・Search and set time zones from all around the world. ・Toggle between 24-hour and AM/PM formats. ・Show or hide seconds to fit your style. 【Battery-Friendly Design】 By utilizing native system mechanisms for updating seconds, this app reduces power consumption compared to traditional timer-driven methods, making it friendly to your battery life. 【Instant Theme Changes】 ・Choose from a variety of pre-set themes to quickly find your favorite design. ・Switch between minimalist, vibrant, or dark-mode optimized themes with a single tap. ・Save your own custom color combinations to build a personal theme library.
Keep
Transform your iPhone into a beautiful, full-screen 3D clock display. Choose from six unique ambient scenes designed for passive viewing on desks or nightstands. Unlock all premium displays with a one-time purchase for an ad-free experience.
- Six unique 3D clock displays
- Full-screen ambient viewing
- Designed for desks and nightstands
- Automatic launch with Shortcuts
- Minimalist, distraction-free design
- One-time purchase for Pro features
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Keep transforms your iPhone into a living clock display. Choose from a collection of full-screen 3D clock scenes designed for desks, nightstands, charging stands, and everyday spaces. Simple. Ambient. Beautiful. Features: Six unique displays Holo Glass Jelly Wireframe Matrix Morph Designed for passive viewing Keep is built for those moments when your iPhone is sitting nearby - on your desk, bedside table, or charging stand. Automatic launch with Shortcuts Use Apple's built-in Shortcuts automation to open Keep automatically when charging. Minimal by design No clutter. No distractions. Just time. Keep Pro: Unlock every display with a one-time purchase. All premium displays Future display drops No subscription Free updates Notes: Keep is a full-screen clock app for iPhone.
Screenshots
Verdict
The clearest difference is iOS requirement: Keep at 17.0 against TesseraClock's 26.4. On price, update cadence, 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. TesseraClock sells 1 one-off in-app purchase and Keep sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Both ship on a similar rhythm, roughly every 6 days. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.
| Parameter | TesseraClock | Keep |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 6 days | Every 6 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 26.4 | 17.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Takashi Nomura | WILL ALEXANDER GIESS |
In-app purchases
TesseraClock
- TesseraClock$4.99
Keep
- Keep pro$3.99









