Comparison

PoolTherm vs Merlino

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

Head to head
About

PoolTherm

Remotely manage your pool's heating system from your mobile device. Control power, modes, temperature, and set timers. Includes weather forecasts to optimize heating schedules.

Highlights
  • Remote heat pump control
  • On/Off functionality
  • Whisper/Boost mode selection
  • Water temperature setting
  • Timer scheduling
  • Weather forecast integration
Read full description

PoolTherm app is a smart app and remote controller for your pool heating. It can control pool heat pump in your mobile phone.  Main functions: 1. Control On/Off of your pool heat pump 2. Select Whisper/Boost mode 3. Set water temperature 4. Set timer 5. Weather forecast  In accordance with the Product Security and Telecommunications Infrastructure (Security Requirements for Relevant Connectable Products) Regulations 2023, the link allows security vulnerabilities identified on I-PAC and Pooltherm products sold within the United Kingdom to be reported to Dantherm Group. The link also provides information on when and how the vulnerability report will be acknowledged, when and how progress updates on any investigation into the vulnerability will be supplied, and the relevant minimum security update periods for I-PAC and Pooltherm products. Link https://info.danthermgroup.com/en-gb/vulnerability-report

About

Merlino

Features
Read full description

The Merlino app is able to read and write the parameters of CPA Merlino WiFi iOT devices: chlorine generators, devices for reading and regulating pH and Rx, for the management of heaters, whirlpools, pumps, RGB lamps. The devices are seen as WiFi Access Points. The app user must select the WiFi of a device in the iPhone settings before opening the app and connecting to it. The WiFi device must be close to the iPhone, at most a few meters. The app allows you to simulate the connection to a device, if the device is not physically available, by turning off the iPhone's WiFi before running the app, in this way it is possible to verify all the app's functions.

Screenshots

PoolTherm4 screens
Merlino4 screens

Verdict

The call

The clearest difference is update cadence: Merlino at every 7 months against PoolTherm's every 24 months. PoolTherm'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

PoolTherm ships an update every 24 months, Merlino every 7 months. The most recent releases landed on October 9, 2026 and October 11, 2026 respectively.

Scorecard2 real differences · 6 level
PoolTherm versus Merlino: the parameters behind the verdict, then further details
ParameterPoolThermMerlino
PriceFreeFree
Positive reviews0.0% of reviews—
Update frequencyEvery 24 monthsEvery 7 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPod
Requires iOS11.0 — better14.0
Further details — not scored
Size241 MB5 MB
Age rating4+4+
DeveloperDanthermC.P.A s.r.l

In-app purchases

None

PoolTherm

No in-app purchases

None

Merlino

No in-app purchases

Questions

Is PoolTherm free?
PoolTherm is free to download, with no in-app purchases.
Is Merlino free?
Merlino is free to download, with no in-app purchases.
Do PoolTherm or Merlino have ads?
Neither PoolTherm nor Merlino shows ads.
Which is updated more often, PoolTherm or Merlino?
PoolTherm ships an update every 24 months, and Merlino every 7 months. Most recently, PoolTherm was updated on October 9, 2026 and Merlino on October 11, 2026.

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