# Popusign vs RestBud

The clearest difference is in-app purchases: Popusign at none against RestBud's 3. Popusign also leads on iOS requirement (15.0 vs 17.0). RestBud's advantage is update cadence (weekly vs every 5 weeks). On price, ads and device support there is nothing between them.

Both are free to download. RestBud sells 3 one-off in-app purchases. Popusign asks for nothing beyond the download.

Popusign ships an update every 5 weeks, RestBud weekly. The most recent releases landed on October 16, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Popusign | RestBud |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Weekly** |
| Size | 105 MB | 8 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [General Lighting Electronic Co., Ltd.](https://appshunter.io/developer/1775395523) | [RUEI YI WU](https://appshunter.io/developer/1896714956) |

## What reviewers say

### Popusign

[App page](https://appshunter.io/ios/app/popusign/id6737228339)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### RestBud

[App page](https://appshunter.io/ios/app/restbud-parental-screen-time/id6797255448)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Coffee | $0.99 | one-time |
| Medium Coffee | $4.99 | one-time |
| Large Coffee | $9.99 | one-time |


## Frequently asked questions

### Is Popusign free?

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

### Is RestBud free?

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

### Do Popusign or RestBud have ads?

Neither Popusign nor RestBud shows ads.

### Which is updated more often, Popusign or RestBud?

Popusign ships an update every 5 weeks, and RestBud weekly. Most recently, Popusign was updated on October 16, 2026 and RestBud on October 24, 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.*