# Improver vs 領収書メーカー

The clearest difference is in-app purchases: Improver at none against 領収書メーカー's 2. Improver also leads on iOS requirement (13.0 vs 15.5). 領収書メーカー's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. 領収書メーカー sells 2 in-app purchases, starting at $1.99 per month. Improver asks for nothing beyond the download.

Improver ships an update every 2 months, 領収書メーカー every 3 weeks. The most recent releases landed on September 19, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Improver | 領収書メーカー |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 37 MB | 14 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [improver.app](https://appshunter.io/developer/1537103010) | [kenichi kato](https://appshunter.io/developer/913467537) |

## What reviewers say

### Improver

[App page](https://appshunter.io/ios/app/improver/id1537103007)

This educational platform uses gamification to enhance organizational processes like training, quality management, and team collaboration. It offers engaging missions and quizzes to motivate users, reinforce knowledge, and track progress within a virtual community.

**Highlights:** Gamified learning platform, Customizable game narratives, Mission-based tasks, Knowledge quizzes and reinforcement, Progress monitoring and feedback, Virtual community features, Alternative to loyalty programs

**Features:** Vision Pro support

**In-app purchases:** none


### 領収書メーカー

[App page](https://appshunter.io/ios/app/id6443805780)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月額プラン | $1.99 | per month |
| 年額プラン | $17.49 | per year |


## Frequently asked questions

### Is Improver free?

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

### Is 領収書メーカー free?

領収書メーカー is free to download, with in-app purchases available.

### Do Improver or 領収書メーカー have ads?

Neither Improver nor 領収書メーカー shows ads.

### Which is updated more often, Improver or 領収書メーカー?

Improver ships an update every 2 months, and 領収書メーカー every 3 weeks. Most recently, Improver was updated on September 19, 2026 and 領収書メーカー on September 29, 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.*