# Biotech Calculators vs TNOA

The clearest difference is update cadence: TNOA at monthly against Biotech Calculators's every 5 months. TNOA also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Biotech Calculators ships an update every 5 months, TNOA monthly. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Biotech Calculators | TNOA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Monthly** |
| Size | 124 MB | 89 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Biotech Vision Care](https://appshunter.io/developer/1056021059) | [Sai Krishnan](https://appshunter.io/developer/756727006) |

## What reviewers say

### Biotech Calculators

[App page](https://appshunter.io/ios/app/biotech-calculators/id1056021060)

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

**In-app purchases:** none


### TNOA

[App page](https://appshunter.io/ios/app/tnoa/id1137611493)

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

**In-app purchases:** none


## Frequently asked questions

### Is Biotech Calculators free?

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

### Is TNOA free?

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

### Do Biotech Calculators or TNOA have ads?

Neither Biotech Calculators nor TNOA shows ads.

### Which is updated more often, Biotech Calculators or TNOA?

Biotech Calculators ships an update every 5 months, and TNOA monthly. Most recently, Biotech Calculators was updated on October 26, 2026 and TNOA on October 24, 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.*