Comparison

iMammalia vs BeeWatch Bystander

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

Head to head
About

iMammalia

Record wild mammal sightings across Europe with this app. Submit your observations, with or without photos, for expert verification and contribute to mammal distribution mapping. All records can be managed and updated online.

Highlights
  • Record mammal sightings
  • Photo uploads optional
  • Expert verification of records
  • Contribute to distribution mapping
  • Online record management
  • Supports European countries
Features
Read full description

The iMammalia App is designed to encourage recording of mammals in the wild. This version of the mobile application is set up to easily record mammals in any European country, but does not yet have all European languages included. Sightings can be recorded anywhere, with or without photos, and all records will be verified by experts and made available to help with mapping the distribution of European mammals. You can check and update your records online.

About

BeeWatch Bystander

Features
Read full description

Recording and reporting what is happening to the environment around us is a positive action we can all take in the face of the breathtaking speed of climate change. Bystander records and delivers observations to the organisations that protect and maintain our environment: birds to the RSPB, bumblebees to the BCT; and Japanese Knotweed to the Non-Native Species Secretariat and…… Invasive species enemy #1: The Asian Hornet 2023 has seen a dramatic increase in the number of sightings. 71 Asian hornet nests have been found in 55 locations (National Bee Unit) and so we’ve made the decision to make Bystander free use. In season, it’s a 24/7 job and the NBU needs our help in confirming sightings and nests. The Bystander app captures picture, location, date, time, and vector (direction) providing all the information needed to locate and destroy a nest. • Free app • Reporting without time-consuming phone calls • Available in any language and works anywhere in the world. • Unsoiled with the conjecture and opinions of social media. • Integrated with the BeeWatch Honeybee Swarm Reporting system, to allow the members of the public to alert local beekeepers to swarms for collection.

Screenshots

iMammalia4 screens
BeeWatch Bystander4 screens

Verdict

The call

The clearest difference is update cadence: iMammalia at every 3 weeks against BeeWatch Bystander's every 2 months. BeeWatch Bystander's advantage is iOS requirement (11.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

iMammalia ships an update every 3 weeks, BeeWatch Bystander every 2 months. The most recent releases landed on October 25, 2026 and October 15, 2026 respectively.

Scorecard2 real differences · 8 level
iMammalia versus BeeWatch Bystander: the parameters behind the verdict, then further details
ParameteriMammaliaBeeWatch Bystander
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS14.011.0 — better
Further details — not scored
Size51 MB64 MB
Age rating4+4+
DeveloperCentre for Ecology and HydrologyuWatch Ltd

In-app purchases

None

iMammalia

No in-app purchases

None

BeeWatch Bystander

No in-app purchases

Questions

Is iMammalia free?
iMammalia is free to download, with no in-app purchases.
Is BeeWatch Bystander free?
BeeWatch Bystander is free to download, with no in-app purchases.
Do iMammalia or BeeWatch Bystander have ads?
Neither iMammalia nor BeeWatch Bystander shows ads.
Which is updated more often, iMammalia or BeeWatch Bystander?
iMammalia ships an update every 3 weeks, and BeeWatch Bystander every 2 months. Most recently, iMammalia was updated on October 25, 2026 and BeeWatch Bystander on October 15, 2026.

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