Comparison

Observation vs Fovcus

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

Head to head
About

Observation

Features
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With Observation you can easily record nature observations in the field. Our online image recognition AI helps you identify the species on your images. You can choose to use the app offline anywhere in the world. Your observation data is stored on your phone first. Saved observations can be uploaded to Observation.org when online. This app is part of Observation.org; an EU-based platform for world wide biodiversity monitoring and citizen science. Observations that you save in your account are publicly visible for everyone who visits Observation.org. Take a look at the website to see what other observers have recorded and explore all data collected by our community. Observations are validated by species experts, after which the records are made available for scientific research.

About

Fovcus

Features
Read full description

Fovcus is a personal vision journal for people living with macular degeneration and other central vision conditions. Check your vision in under a minute with the Amsler Grid — the same simple test used by eye specialists worldwide — and record exactly what you see. PRIVATE BY DESIGN • No account, no sign-up, no tracking • Everything stays on your device — no internet needed RECORD WHAT YOU ACTUALLY SEE • Draw wavy, blurry or missing areas with your finger • Bend grid lines to where they really appear to you • The Black Hole tool shows areas of central vision loss • Your previous session appears as a faint ghost overlay, so changes jump out TRACK BOTH EYES OVER TIME • Separate history for left and right eye • "Last check" cue, plus optional daily, weekly or monthly reminders — free • Large text, big buttons, brightness and invert options built for low vision • Full VoiceOver support FOVCUS PRO — PAY ONCE, YOURS FOREVER • Unlimited session history • Compare any two sessions side by side • Progress charts for each eye • Doctor-ready PDF reports — both eyes, scores and trends — to email or hand to your specialist Fovcus is a personal journal, not a medical device. It does not diagnose, treat or advise on any condition. Always consult your ophthalmologist or retinal specialist, and contact them immediately if you notice sudden changes.

Screenshots

Observation4 screens
Fovcus4 screens

Verdict

The call

The clearest difference is in-app purchases: Observation at none against Fovcus's 1. On price, update cadence, ads and device support there is nothing between them.

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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Fovcus sells 1 one-off in-app purchase. Observation asks for nothing beyond the download.

UpkeepUpdate frequency

Observation ships an update every 2 weeks, Fovcus monthly. The most recent releases landed on October 10, 2026 and October 25, 2026 respectively.

Scorecard1 real difference Ā· 5 level
Observation versus Fovcus: the parameters behind the verdict, then further details
ParameterObservationFovcus
PriceFreeFree
Update frequencyEvery 2 weeks — betterMonthly
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.115.1
Further details — not scored
Size80 MB32 MB
Age rating4+4+
DeveloperStichting Observation Internationalross cowen

In-app purchases

None

Observation

No in-app purchases

1 purchases

Fovcus

One-time1
  • Fovcus Pro$6.99

Questions

Is Observation free?
Observation is free to download, with no in-app purchases.
Is Fovcus free?
Fovcus is free to download, with in-app purchases available.
Do Observation or Fovcus have ads?
Neither Observation nor Fovcus shows ads.
Which is updated more often, Observation or Fovcus?
Observation ships an update every 2 weeks, and Fovcus monthly. Most recently, Observation was updated on October 10, 2026 and Fovcus on October 25, 2026.

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