# Nerve vs Bio Architect

The clearest difference is price: Nerve at Free against Bio Architect's $0.99. Nerve also leads on update cadence (every 4 days vs every 11 days). Bio Architect's advantage is in-app purchases (none vs 5). On ads, device support and iOS requirement there is nothing between them.

Nerve is free to download; Bio Architect costs $0.99 up front. Nerve sells 5 in-app purchases, starting at $0.99 per 7 days. Bio Architect asks for nothing beyond the download.

Nerve ships an update every 4 days, Bio Architect every 11 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Nerve | Bio Architect |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.9 (15 ratings)](https://appshunter.io/ios/app/nerve-screen-time-control/id6760310568/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 11 days |
| Monetization | Subscription | — |
| Size | 15 MB | 3 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Best Day Labs, LLC](https://appshunter.io/developer/1853723075) | [Robert Corbin](https://appshunter.io/developer/1890247992) |

## What reviewers say

### Nerve

[App page](https://appshunter.io/ios/app/nerve-screen-time-control/id6760310568)

Transform unproductive app usage into a brain-training challenge. Answer logic puzzles and brainteasers to earn back access to blocked apps, with higher difficulty offering greater rewards and risk.

**Highlights:** App blocking via Apple Screen Time, 6 difficulty tiers with escalating rewards, Pick Your Risk and Gauntlet modes, Double-or-Nothing gambling mechanic, 1000 handcrafted brainteaser questions, ELO-inspired Brain Score tracking, Daily quests and achievements

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Nerve Weekly | $0.99 | per 7 days |
| Nerve Monthly | $2.99 | per month |
| Nerve Yearly | $9.99 | per year |
| Cooldown Skip Pack | $0.99 | one-time |
| Nerve Pro Lifetime | $14.99 | one-time |


### Bio Architect

[App page](https://appshunter.io/ios/app/bio-architect-bio-writer/id6771379988)

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

**In-app purchases:** none


## Frequently asked questions

### Is Nerve free?

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

### Is Bio Architect free?

Bio Architect costs $0.99, with no in-app purchases.

### Do Nerve or Bio Architect have ads?

Neither Nerve nor Bio Architect shows ads.

### Which is updated more often, Nerve or Bio Architect?

Nerve ships an update every 4 days, and Bio Architect every 11 days. Most recently, Nerve was updated on October 24, 2026 and Bio Architect 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.*