# VIVID Calculator vs ABCSizing

The clearest difference is iOS requirement: VIVID Calculator at 10.0 against ABCSizing's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

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

VIVID Calculator ships an update fortnightly, ABCSizing every 3 weeks. Both last shipped on October 2, 2026.

## The numbers

| Metric | VIVID Calculator | ABCSizing |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Size | 48 MB | 26 MB |
| Requires iOS | **10.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [PurpleBricks LTD](https://appshunter.io/developer/1108872391) | [Tej Sheth](https://appshunter.io/developer/1789698423) |

## What reviewers say

### VIVID Calculator

[App page](https://appshunter.io/ios/app/vivid-calculator/id1462328716)

**Features:** macOS Compatibility

**In-app purchases:** none


### ABCSizing

[App page](https://appshunter.io/ios/app/abcsizing/id6740382420)

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

**In-app purchases:** none


## Frequently asked questions

### Is VIVID Calculator free?

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

### Is ABCSizing free?

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

### Do VIVID Calculator or ABCSizing have ads?

Neither VIVID Calculator nor ABCSizing shows ads.

### Which is updated more often, VIVID Calculator or ABCSizing?

VIVID Calculator ships an update fortnightly, and ABCSizing every 3 weeks. Most recently, VIVID Calculator was updated on October 2, 2026 and ABCSizing on October 2, 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.*