Comparison

KoiApp vs PondManager

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

Head to head
About

KoiApp

Read full description

KoiApp is the complete app for koi keepers and breeders โ€” track every fish, care for your pond, and control it all from your phone. Part of the KoiSoft system. Built for hobbyists and breeders alike, KoiApp brings your whole koi life into one place. โ€ข Studio ID cards โ€” turn ordinary photos into stunning AI-generated studio portraits, each with its own digital certificate โ€ข Growth tracking โ€” log length and weight over time and follow every koi's growth curve โ€ข Measure from a photo โ€” mark a known reference and get an exact length without handling the fish โ€ข Scan a fish โ€” AI identifies species and variety and estimates size, then carries the fish straight into a KoiDoctor conversation โ€ข Water tests โ€” log temperature, pH, ammonia, nitrite, nitrate, KH and GH in under a minute, photograph the test strip, and see every value charted over time โ€ข KoiDoctor โ€” ask about health, symptoms and seasonal care, or have it read a water test: it weighs pH against KH, nitrite against temperature and stocking, and tells you what the situation actually is โ€ข Feeding โ€” plans that follow water temperature, fish size and the food you use โ€ข Breeding โ€” KoiMix weighs a pairing and shows the likely offspring; build a family tree with parents and offspring โ€ข Marketplace โ€” discover koi for sale from breeders, or list your own โ€ข Ownership transfer โ€” hand a koi to its new owner with the full history: photos, measurements, logs and water tests โ€ข Smart hardware โ€” connect KoiBox & KoiPlugg devices to monitor and control pump, UV, heating, lights, feeding and water level Free to start. Upgrade to Premium for unlimited logging, 20 studio images per month, multi-device control and more. Terms of Use (EULA): https://koisoft.eu/terms Privacy Policy: https://koisoft.eu/privacy

About

PondManager

Features
Read full description

PondManager is the app for every koi hobbyist. Track your water values, follow your koi's growth and see how your pond is doing at a glance. TRACK WATER VALUES Log all your measurements: ammonia, nitrite, nitrate, pH, KH, GH, temperature, TDS and more. Review them in a clear chart with a dual y-axis, so even widely differing values stay easy to read. Enter several values at once. FOLLOW YOUR KOI Give every koi its own profile with a photo, variety, breeder and dealer. Add length measurements with a photo and see the growth in a curve. Compare two measurements side by side and drag through time to watch your koi develop. MANAGE YOUR PONDS Manage multiple ponds, each with dimensions, volume, filter details and residents. Keep a timeline of everything you do to your pond. ALWAYS AN OVERVIEW The dashboard shows your key values, your koi and your recent activity right away. So you always know how your pond is doing. PondManager works with your PondManager account (pondmanager.nl). After signing up you can try the app free for 14 days.

Screenshots

KoiApp4 screens
PondManager4 screens

Verdict

The call

The clearest difference is in-app purchases: PondManager at none against KoiApp's 4. PondManager also leads on update cadence (weekly vs every 2 months). On price, ads, 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

Both are free to download. KoiApp sells 4 in-app purchases, starting at $4.99 per month. PondManager asks for nothing beyond the download.

UpkeepUpdate frequency

KoiApp ships an update every 2 months, PondManager weekly. Both last shipped on October 31, 2026.

Scorecard2 real differences ยท 4 level
KoiApp versus PondManager: the parameters behind the verdict, then further details
ParameterKoiAppPondManager
PriceFreeFree
Update frequencyEvery 2 monthsWeekly โ€” better
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS15.0 โ€” better16.4
Further details โ€” not scored
Size26 MB56 MB
Age rating4+4+
DeveloperKai BertelsenBaspro IT

In-app purchases

4 purchases

KoiApp

Subscriptions3
  • KoiSoft Premium$4.991 Month
  • Extra storage$7.991 Year
  • KoiSoft Premium$49.991 Year
One-time1
  • Studio images ร—20$9.99
None

PondManager

No in-app purchases

Questions

Is KoiApp free?
KoiApp is free to download, with in-app purchases available.
Is PondManager free?
PondManager is free to download, with no in-app purchases.
Do KoiApp or PondManager have ads?
Neither KoiApp nor PondManager shows ads.
Which is updated more often, KoiApp or PondManager?
KoiApp ships an update every 2 months, and PondManager weekly. Most recently, KoiApp was updated on October 31, 2026 and PondManager on October 31, 2026.

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