# AI 錄音器 vs Rostr

The clearest difference is review sentiment: Rostr at 100% against AI 錄音器's 0%. Rostr also leads on rating (5.0 vs 4.0) and update cadence (weekly vs every 5 months). AI 錄音器's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price, ratings volume and device support there is nothing between them.

Both are free to download. Rostr sells 2 in-app purchases, starting at $3.99 per month. AI 錄音器 asks for nothing beyond the download.

Rostr holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews point the same way: 0% of AI 錄音器's written reviews are positive against 100% of Rostr's.

AI 錄音器 ships an update every 5 months, Rostr weekly. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | AI 錄音器 | Rostr |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/ai/id6752925369/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/rostr-roster-sharing/id6759208293/reviews)** |
| Number of ratings | 2 | 2 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 48 MB | 74 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [CMoney](https://appshunter.io/developer/503431064) | [Arami Tech LLC](https://appshunter.io/developer/6825196014) |

## What reviewers say

### AI 錄音器

[App page](https://appshunter.io/ios/app/ai/id6752925369)

This app simplifies recording and summarizing audio with a single tap. It automatically generates concise summaries, saving time and boosting efficiency for various spoken content like meetings and lectures. Its intuitive design makes it easy for anyone to use.

**Highlights:** One-tap recording, Automatic content summarization, High efficiency and time-saving, Minimalist and intuitive interface, Multi-language voice recognition

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

**In-app purchases:** none


### Rostr

[App page](https://appshunter.io/ios/app/rostr-roster-sharing/id6759208293)

Easily share work schedules with friends and see when you're both working. Features AI-powered roster scanning, shared calendars, and overlap alerts for spontaneous meetups. Create private groups for small teams and access schedules offline.

**Highlights:** AI Roster Scanning, Shared Group Calendars, Overlap Alerts, Offline Access, Private Group Creation, Dark/Light Mode

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rostr Pro Monthly | $3.99 | per month |
| Rostr Pro Yearly | $29.99 | per year |


## Frequently asked questions

### Is AI 錄音器 free?

AI 錄音器 is free to download, with no in-app purchases.

### Is Rostr free?

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

### Which has better reviews, AI 錄音器 or Rostr?

Rostr is rated higher. AI 錄音器 averages 4.0 out of 5 from 2 ratings, while Rostr averages 5.0 from 2 ratings.

### Do AI 錄音器 or Rostr have ads?

Rostr shows ads; AI 錄音器 does not.

### Which is updated more often, AI 錄音器 or Rostr?

AI 錄音器 ships an update every 5 months, and Rostr weekly. Most recently, AI 錄音器 was updated on October 24, 2026 and Rostr on October 28, 2026.

---

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