# Big Butterfly Count vs BenchCalc

The clearest difference is price: Big Butterfly Count at Free against BenchCalc's $0.99. BenchCalc's advantage is update cadence (every 2 days vs monthly) and review sentiment (100% vs 77%). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Big Butterfly Count is free to download; BenchCalc costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Big Butterfly Count ships an update monthly, BenchCalc every 2 days. The most recent releases landed on October 21, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Big Butterfly Count | BenchCalc |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.8 (12 ratings)](https://appshunter.io/ios/app/big-butterfly-count/id658158833/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 77.1% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | **Ad-supported** | Paid |
| Size | 41 MB | 16 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Butterfly Conservation Trading Ltd](https://appshunter.io/developer/658158836) | [FEEDINGS LTD](https://appshunter.io/developer/1855151498) |

## What reviewers say

### Big Butterfly Count

[App page](https://appshunter.io/ios/app/big-butterfly-count/id658158833)

Participate in a national butterfly and moth survey by identifying and counting species in your local environment. Your observations contribute to understanding the health of UK wildlife. Features an identification guide and a map to view submitted sightings.

**Highlights:** Butterfly and moth identification guide, Count and submit sightings, View submitted records on a map, Contribute to wildlife research, 15-minute nature observation

**Features:** Vision Pro support

**In-app purchases:** none


### BenchCalc

[App page](https://appshunter.io/ios/app/benchcalc/id6760035149)

This offline science companion offers over 55 calculators and tools for molecular biology, protein analysis, chemistry, and general lab work. It also includes troubleshooting wizards, a glossary, protocols, and reference tables for researchers and students.

**Highlights:** 55+ science calculators, Offline functionality, Troubleshooting wizards, 414+ glossary terms, 13 laboratory protocols, Reference tables

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

**In-app purchases:** none


## Frequently asked questions

### Is Big Butterfly Count free?

Big Butterfly Count is free to download, with no in-app purchases.

### Is BenchCalc free?

BenchCalc costs $0.99, with no in-app purchases.

### Do Big Butterfly Count or BenchCalc have ads?

Neither Big Butterfly Count nor BenchCalc shows ads.

### Which is updated more often, Big Butterfly Count or BenchCalc?

Big Butterfly Count ships an update monthly, and BenchCalc every 2 days. Most recently, Big Butterfly Count was updated on October 21, 2026 and BenchCalc on October 13, 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.*