# Hi vs TuDime

The clearest difference is review sentiment: TuDime at 100% against Hi's 57%. TuDime also leads on rating (4.8 vs 3.1). Hi's advantage is in-app purchases (none vs 2) and update cadence (daily vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. TuDime sells 2 one-off in-app purchases. Hi asks for nothing beyond the download.

TuDime holds the better App Store score, 4.8 against 3.1. That said, the two scores are not equally well evidenced: Hi has 47 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 57% of Hi's written reviews are positive against 100% of TuDime's.

Hi ships an update daily, TuDime every 3 weeks. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Hi | TuDime |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (47 ratings)](https://appshunter.io/ios/app/hi-instant-messenger/id691200877/reviews) | **[4.8 (4 ratings)](https://appshunter.io/ios/app/tudime/id1546614031/reviews)** |
| Number of ratings | **47** | 4 |
| Positive reviews | 57.2% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 3 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 47 MB | 124 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Hi Technology, Inc.](https://appshunter.io/developer/933438248) | [TuDime, LLC](https://appshunter.io/developer/1546614033) |

## What reviewers say

### Hi

[App page](https://appshunter.io/ios/app/hi-instant-messenger/id691200877)

This communication app offers free WiFi calls and video calls with friends, along with text, voice, image, and video messaging. It provides unlimited international calls and 720p HD video quality, with a unique 10,000 GB of free cloud storage for photos and videos.

**Highlights:** Free WiFi calls and video calls, Text, voice, image, and video messaging, Unlimited international calls, 720p HD video calls, 10,000 GB free video cloud storage, Instant photo/video sharing, Message status indicators

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

**In-app purchases:** none

**What reviewers like**

- 💡 Great app for calling and messaging
- 🚀 Crystal clear voice quality
- 👍 Easy to use and personalize

**What reviewers complain about**

- 🐛 Verification code not received
- 🐛 Frequent crashes and freezes
- 🐛 Inability to send/receive messages and photos
- 🐛 Accounts getting logged out randomly

**Reported bugs**

- Verification code not being sent
- Calls getting disconnected or not connecting
- Cloud storage issues with photos and videos
- Compatibility problems with older devices

**Requested features**

- Add video calling functionality
- Implement read/delivery receipts for messages
- Allow deleting entire conversation history
- Improve notification system


### TuDime

[App page](https://appshunter.io/ios/app/tudime/id1546614031)

Connect with colleagues, friends, and family through real-time chat. Share videos, audio, images, and files seamlessly. Enjoy free global video calling and conferencing.

**Highlights:** Real-time chat, Video calling, Video conferencing, Share videos, audio, images, files, Worldwide connectivity

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tudime | $0.99 | one-time |
| Tudime | $19.99 | one-time |


## Frequently asked questions

### Is Hi free?

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

### Is TuDime free?

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

### Which has better reviews, Hi or TuDime?

TuDime is rated higher. Hi averages 3.1 out of 5 from 47 ratings, while TuDime averages 4.8 from 4 ratings.

### Do Hi or TuDime have ads?

Neither Hi nor TuDime shows ads.

### Which is updated more often, Hi or TuDime?

Hi ships an update daily, and TuDime every 3 weeks. Most recently, Hi was updated on November 1, 2026 and TuDime on October 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.*