# THINKWARE iVolt vs iDOS 3

The clearest difference is review sentiment: iDOS 3 at 70% against THINKWARE iVolt's 8%. iDOS 3 also leads on rating (4.3 vs 3.7) and ratings volume (51 vs 3). THINKWARE iVolt's advantage is price (Free vs $4.99) and iOS requirement (12.0 vs 15.0). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

THINKWARE iVolt is free to download; iDOS 3 costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

iDOS 3 holds the better App Store score, 4.3 against 3.7. That said, the two scores are not equally well evidenced: iDOS 3 has 51 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 8% of THINKWARE iVolt's written reviews are positive against 70% of iDOS 3's.

Both ship on a similar rhythm, roughly every 6 weeks. Both last shipped on October 16, 2026.

## The numbers

| Metric | THINKWARE iVolt | iDOS 3 |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/thinkware-ivolt/id1330538271/reviews) | **[4.3 (51 ratings)](https://appshunter.io/ios/app/idos-3/id1580768213/reviews)** |
| Number of ratings | 3 | **51** |
| Positive reviews | 8.3% of reviews | **69.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | Every 6 weeks |
| Monetization | Free | Free |
| Best chart rank | — | **#117** |
| Size | 18 MB | 8 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [THINKWARE SYSTEMS CORPORATION](https://appshunter.io/developer/403472990) | [潮激 李](https://appshunter.io/developer/342075158) |

## What reviewers say

### THINKWARE iVolt

[App page](https://appshunter.io/ios/app/thinkware-ivolt/id1330538271)

Monitor and control your iVolt battery's performance wirelessly. View real-time data like capacity, status, temperature, and voltage. Manage settings for optimal battery health and longevity.

**Highlights:** Bluetooth connectivity, Real-time battery capacity display, Charge/discharge status monitoring, Remaining charge/discharge time estimation, Battery temperature display, Input/output voltage and current monitoring

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

**In-app purchases:** none


### iDOS 3

[App page](https://appshunter.io/ios/app/idos-3/id1580768213)

**Currently charting:** #117 Top Paid · Utilities (US App Store)

Experience classic DOS games and applications on your iPhone and iPad. This app emulates a DOS PC, offering modern controls for enhanced playability. It also supports productivity tasks like word processing and programming.

**Highlights:** On-screen keyboard with custom layouts, Virtual gamepad with customizable bindings, Trackpad mouse emulation, MT-32 emulation and MIDI support, Bluetooth keyboard and gamepad support, Bluetooth mouse support

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

**In-app purchases:** none

**What reviewers like**

- 🎮 Playable classic DOS games
- 🤖 Great DOS emulator functionality
- 🎨 Awesome interface and user experience
- 🔍 Supports mounting of various disk formats (floppies, ISOs)
- 🖥️ Works best on M1/M2/M4 iPads

**What reviewers complain about**

- 🕹️ Steep learning curve for casual users
- 🔧 Lacks support for some common disk formats (e.g. .img, .iso)
- 🎮 Issues with game controls and mapping
- 📁 Difficulty managing multiple floppy disk installers
- 🔍 Limited disk mounting options in landscape mode


## Frequently asked questions

### Is THINKWARE iVolt free?

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

### Is iDOS 3 free?

iDOS 3 costs $4.99, with no in-app purchases.

### Which has better reviews, THINKWARE iVolt or iDOS 3?

iDOS 3 is rated higher. THINKWARE iVolt averages 3.7 out of 5 from 3 ratings, while iDOS 3 averages 4.3 from 51 ratings.

### Do THINKWARE iVolt or iDOS 3 have ads?

Neither THINKWARE iVolt nor iDOS 3 shows ads.

### Which is updated more often, THINKWARE iVolt or iDOS 3?

THINKWARE iVolt ships an update every 6 weeks, and iDOS 3 every 6 weeks. Most recently, THINKWARE iVolt was updated on October 16, 2026 and iDOS 3 on October 16, 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.*