Comparison

FrogSpotter vs On The Fly

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

FrogSpotter

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
Read full description

Help us collect valuable data on the condition of the environments frogs are dependent on in South Australia! Collect audio, photos and habitat info for each survey you conduct. Learn about frogs within SA, including audio examples of their calls. Frog survey tool: - Auto-capture of your survey's GPS location data* - Capture audio of frogs calling - Take photos of frogs and their habitat - Record habitat info quickly and simply - Try and identify frogs you see and hear Resources and education: - Catalogue of frogs in South Australia - Species identification info including photos, audio and habitat * You must have GPS enabled to properly conduct surveys on your mobile device. This data is then mapped on multiple publicly available online databases. See www.frogwatchsa.com.au for more on this.

About

On The Fly

Read full description

With On the Fly you will be able to accurately identify the family to which an Australian fly belongs. The App also includes further information on each Australian fly family, including photographs, a brief morphological description, biology and distribution, and links to literature and web sites. Diptera, commonly known as 'true flies', is an insect order which includes many widespread and familiar insects such as mosquitoes, midges, sand flies, fruit flies, houseflies and blowflies. Most insects have two sets of functional flying wings, but flies have only one. The second pair are reduced to small club-like structures called halteres, which are used for balance and steering during flight. Worldwide, there are approximately 150, 000 described fly species in 150 families (C. Thompson, pers. comm. 2004, http://www.diptera.org). However the total number, including undescribed species, is much higher. This large number of species makes Diptera one of the most species-rich insect orders and also one of the largest groups of commonly recognised organisms on earth (Brown 2003). Not only are there an enormous number of fly species in the world, they also display great diversity in anatomical, biological and ecological specialisations (Merritt et al. 2003). The most recent estimate for the number of fly species in Australia is around 30,000 in 104 families (Yeates et al. 2004), with only 6,400 species described so far. The Australian fly fauna is largely endemic at species level, with most species occurring only in Australia (Colless and McAlpine 1991). Flies are ubiquitous and often abundant in Australian terrestrial ecosystems, where they perform important ecological functions such as nutrient recycling, predation and pollination. Many fly larvae are parasitoids of other insects. Some are economically important pests or vectors of disease, while others are beneficial, and play important biological or ecological roles such as regulating pest populations. Flies can also be nuisances, for example, the bush fly (Musca vetutissima), and various species of blood sucking mosquitoes, sandflies and blackflies (Culicidae, Ceratopogonidae: mostly Culicoides; and Simuliidae โ€” mostly Simulium, respectively). Estimating the total number of Australian fly species is difficult given the large size of the continent, the paucity of sampling and the narrow endemism displayed by many taxa. Most families occur in Australia and those that are absent are mainly small, specialised acalyptrates, some of which may be discovered here in the future (Colless and McAlpine 1991).

Screenshots

FrogSpotter4 screens
On The Fly4 screens

Verdict

The call

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.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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.

UpkeepUpdate frequency

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.

Scorecard2 real differences ยท 6 level
FrogSpotter versus On The Fly: the parameters behind the verdict, then further details
ParameterFrogSpotterOn The Fly
PriceFree โ€” better$9.99
Positive reviews0.0% of reviewsโ€”
Update frequencyEvery 17 monthsMonthly โ€” better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeโ€”
DevicesiPhone, iPodiPhone, iPad, iPod โ€” better
Requires iOS13.013.0
Further details โ€” not scored
Size20 MB75 MB
Age rating4+4+
DeveloperFrogWatch SALucidMobile

In-app purchases

None

FrogSpotter

No in-app purchases

None

On The Fly

No in-app purchases

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.

Other comparisons