Comparison

Power Save Me vs RynDevice

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

Head to head
About

Power Save Me

Features
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Power Save Me follows the Swedish electricity spot market across bidding areas SE1, SE2, SE3 and SE4. Compare yesterday, today and tomorrow on one scale, see the cheapest and dearest hour still ahead, and turn value-added tax on or off. Estimate a dishwasher, washer, dryer, oven, sauna or home car charge if you start now or wait. History covers a week, thirty days or a year. Figures come from the public Nord Pool spot feed and leave out grid fees and supplier surcharges. Privacy policy: https://linespotting.com/privacy-policy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

RynDevice

Features
Read full description

See your device information and check its main functions yourself. Whether you are buying or selling a used phone or investigating a change in everyday use, RynDevice helps you check one item at a time. โ–  Hardware checks, from screen to sound (9) Check the display, touch, camera, speaker, microphone, vibration, flashlight, GPS and sensors. Run a full check in order or choose individual tests, then record a pass or fail. โ–  Save results and compare earlier checks Add notes to your results and see which items changed between two records. Compare checks before and after a repair or after testing again, then share the comparison as text or a PDF. โ–  No internet? Start with the connection Check the network connection, IP assignment, DNS and HTTPS access step by step. Save diagnostic results and compare them with earlier records. This is not an internet speed test. โ–  Compare charging after changing cables Record the battery-level change for each cable over 5 or 10 minutes, then compare two results captured under similar conditions. Share the comparison as a PDF. Charging power in watts is not available on iOS. โ–  Your device information in one place View CPU, memory, storage, battery level, charging status and other device information. Follow accelerometer, gyroscope and other sensor readings on live graphs. โ–  Find the information you use most Search for an item and keep frequent checks in Favorites. Supports light and dark modes, plus English, Korean, Japanese, German and Portuguese (Brazil). Available information and measurements vary by device and iOS version. Values that the system restricts or cannot measure are labeled accordingly. Hardware checks rely on you to verify how a function works and record the result. Contains ads. Privacy policy: https://cs.devryner.com/en/apps/ryndevice/privacy

Screenshots

Power Save Me4 screens
RynDevice4 screens

Verdict

The call

The clearest difference is in-app purchases: RynDevice at none against Power Save Me's 1. RynDevice also leads on update cadence (every 3 weeks vs every 2 months). Power Save Me's advantage is ads (none vs shown) and device support (3 vs 1). On price 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. Power Save Me sells 1 one-off in-app purchase. RynDevice asks for nothing beyond the download.

UpkeepUpdate frequency

Power Save Me ships an update every 2 months, RynDevice every 3 weeks. The most recent releases landed on October 30, 2026 and November 1, 2026 respectively.

Scorecard5 real differences ยท 1 level
Power Save Me versus RynDevice: the parameters behind the verdict, then further details
ParameterPower Save MeRynDevice
PriceFreeFree
Update frequencyEvery 2 monthsEvery 3 weeks โ€” better
AdsNo โ€” betterYes
In-app purchasesYesNo โ€” better
DevicesiPhone, iPad, iPod โ€” betteriPhone
Requires iOS15.0 โ€” better26.0
Further details โ€” not scored
Size6 MB26 MB
Age rating4+4+
DeveloperLineSpotting ABChi Won Choi

In-app purchases

1 purchases

Power Save Me

One-time1
  • Power Save Me Pro$3.99
None

RynDevice

No in-app purchases

Questions

Is Power Save Me free?
Power Save Me is free to download, with in-app purchases available.
Is RynDevice free?
RynDevice is free to download, with no in-app purchases.
Do Power Save Me or RynDevice have ads?
RynDevice shows ads; Power Save Me does not.
Which is updated more often, Power Save Me or RynDevice?
Power Save Me ships an update every 2 months, and RynDevice every 3 weeks. Most recently, Power Save Me was updated on October 30, 2026 and RynDevice on November 1, 2026.

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