# IIFF vs Caliform

IIFF and Caliform are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

IIFF ships an update every 2 weeks, Caliform every 9 days. The most recent releases landed on October 10, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | IIFF | Caliform |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 9 days** |
| Size | 20 MB | 106 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [MOSFED](https://appshunter.io/developer/1871388896) | [EWROS YAZILIM OTOMASYON LIMITED SIRKETI](https://appshunter.io/developer/1626603513) |

## What reviewers say

### IIFF

[App page](https://appshunter.io/ios/app/iiff/id6739048295)

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

**In-app purchases:** none


### Caliform

[App page](https://appshunter.io/ios/app/caliform/id6756274517)

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

**In-app purchases:** none


## Frequently asked questions

### Is IIFF free?

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

### Is Caliform free?

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

### Do IIFF or Caliform have ads?

Neither IIFF nor Caliform shows ads.

### Which is updated more often, IIFF or Caliform?

IIFF ships an update every 2 weeks, and Caliform every 9 days. Most recently, IIFF was updated on October 10, 2026 and Caliform on October 4, 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.*