# Seal vs BuildTimer

The clearest difference is in-app purchases: BuildTimer at none against Seal's 9. BuildTimer also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Seal sells 9 in-app purchases, starting at $2.99 per month. BuildTimer asks for nothing beyond the download.

Seal ships an update every 8 days, BuildTimer fortnightly. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Seal | BuildTimer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (12 ratings)](https://appshunter.io/ios/app/seal-sticker-calendar/id1530169942/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 8 days** | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 227 MB | 40 MB |
| Requires iOS | **16.2** | 16.3 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 9+ | 4+ |
| Developer | [Daisuke Katayama](https://appshunter.io/developer/1102066592) | [hashimoto ryouya](https://appshunter.io/developer/1684907824) |

## What reviewers say

### Seal

[App page](https://appshunter.io/ios/app/seal-sticker-calendar/id1530169942)

Design a personalized calendar with your favorite images, videos, and theme colors. Easily add appointments with drag-and-drop stamps. Offers a lock function for privacy and integrates with your iOS calendar for holidays and birthdays.

**Highlights:** Set photos and videos as backgrounds, Customize theme colors and fonts, Over 190 types of stamps for scheduling, Face ID and Touch ID lock function, iOS calendar integration, Widget display for quick access, Notification and schedule alerts

**Features:** Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| monthly premium plan | $2.99 | per month |
| Annual premium plan | $24.99 | per year |
| Pastel Color Set | $0.99 | one-time |
| Dullness Set1 | $0.99 | one-time |
| Dullness Set2 | $0.99 | one-time |
| Chocolate Set | $0.99 | one-time |
| Full Screen | $3.99 | one-time |
| Release Pack | $4.99 | one-time |
| Hide Ads | $5.99 | one-time |


### BuildTimer

[App page](https://appshunter.io/ios/app/buildtimer/id6448892333)

**In-app purchases:** none


## Frequently asked questions

### Is Seal free?

Seal is free to download, with in-app purchases available.

### Is BuildTimer free?

BuildTimer is free to download, with no in-app purchases.

### Do Seal or BuildTimer have ads?

Seal shows ads; BuildTimer does not.

### Which is updated more often, Seal or BuildTimer?

Seal ships an update every 8 days, and BuildTimer fortnightly. Most recently, Seal was updated on October 24, 2026 and BuildTimer on October 28, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*