# ISI Image Capture and Transfer vs CalcNotes

The clearest difference is in-app purchases: ISI Image Capture and Transfer at none against CalcNotes's 2. ISI Image Capture and Transfer also leads on iOS requirement (11.0 vs 15.1). CalcNotes's advantage is update cadence (weekly vs every 6 weeks). On price, ads and device support there is nothing between them.

Both are free to download. CalcNotes sells 2 in-app purchases, starting at $1.99 per month. ISI Image Capture and Transfer asks for nothing beyond the download.

ISI Image Capture and Transfer ships an update every 6 weeks, CalcNotes weekly. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | ISI Image Capture and Transfer | CalcNotes |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Size | 32 MB | 52 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Arrendale Associates Inc.](https://appshunter.io/developer/1042913779) | [naoki otsu](https://appshunter.io/developer/1082476153) |

## What reviewers say

### ISI Image Capture and Transfer

[App page](https://appshunter.io/ios/app/isi-image-capture-and-transfer/id1595799841)

**Features:** macOS Compatibility

**In-app purchases:** none


### CalcNotes

[App page](https://appshunter.io/ios/app/calcnotes-calculation-memo/id6752585573)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | per month |
| Premium (Pay Once) | $4.99 | one-time |


## Frequently asked questions

### Is ISI Image Capture and Transfer free?

ISI Image Capture and Transfer is free to download, with no in-app purchases.

### Is CalcNotes free?

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

### Do ISI Image Capture and Transfer or CalcNotes have ads?

Neither ISI Image Capture and Transfer nor CalcNotes shows ads.

### Which is updated more often, ISI Image Capture and Transfer or CalcNotes?

ISI Image Capture and Transfer ships an update every 6 weeks, and CalcNotes weekly. Most recently, ISI Image Capture and Transfer was updated on October 27, 2026 and CalcNotes on October 28, 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.*