# Plot Spark vs Bio Architect

The clearest difference is update cadence: Bio Architect at every 11 days against Plot Spark's every 2 months. Plot Spark's advantage is price ($0.99 vs $2.99). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Plot Spark costs $0.99 and Bio Architect $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Plot Spark ships an update every 2 months, Bio Architect every 11 days. The most recent releases landed on September 30, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Plot Spark | Bio Architect |
| --- | --- | --- |
| Price | **$0.99** | $2.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 11 days** |
| Size | 6 MB | 3 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tobias Reithmeier](https://appshunter.io/developer/1882860698) | [Robert Corbin](https://appshunter.io/developer/1890247992) |

## What reviewers say

### Plot Spark

[App page](https://appshunter.io/ios/app/plot-spark/id6760355038)

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

**In-app purchases:** none


### 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 Plot Spark free?

Plot Spark costs $0.99, with no in-app purchases.

### Is Bio Architect free?

Bio Architect costs $2.99, with no in-app purchases.

### Do Plot Spark or Bio Architect have ads?

Neither Plot Spark nor Bio Architect shows ads.

### Which is updated more often, Plot Spark or Bio Architect?

Plot Spark ships an update every 2 months, and Bio Architect every 11 days. Most recently, Plot Spark was updated on September 30, 2026 and Bio Architect on October 12, 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.*