# FrogSpotter vs On The Fly

The clearest difference is price: FrogSpotter at Free against On The Fly's $9.99. On The Fly's advantage is update cadence (monthly vs every 17 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

FrogSpotter is free to download; On The Fly costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

FrogSpotter ships an update every 17 months, On The Fly monthly. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | FrogSpotter | On The Fly |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Monthly** |
| Monetization | Free | — |
| Size | 20 MB | 75 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [FrogWatch SA](https://appshunter.io/developer/1738559402) | [LucidMobile](https://appshunter.io/developer/898685479) |

## What reviewers say

### FrogSpotter

[App page](https://appshunter.io/ios/app/frogspotter/id1049922428)

This app allows users to collect audio, photos, and habitat information for frog surveys in South Australia. It provides a catalogue of local frog species with identification details and audio examples of their calls. The collected data is mapped on public online databases to help monitor environmental conditions.

**Highlights:** GPS location capture for surveys, Audio recording of frog calls, Photo capture of frogs and habitat, Habitat information recording, Frog species identification, Catalogue of South Australian frogs

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

**In-app purchases:** none


### On The Fly

[App page](https://appshunter.io/ios/app/on-the-fly/id1567989006)

**In-app purchases:** none


## Frequently asked questions

### Is FrogSpotter free?

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

### Is On The Fly free?

On The Fly costs $9.99, with no in-app purchases.

### Do FrogSpotter or On The Fly have ads?

Neither FrogSpotter nor On The Fly shows ads.

### Which is updated more often, FrogSpotter or On The Fly?

FrogSpotter ships an update every 17 months, and On The Fly monthly. Most recently, FrogSpotter was updated on November 2, 2026 and On The Fly on November 7, 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.*