Comparison

Roommate Albert vs Balkonizer

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

Head to head
About

Roommate Albert

Effortlessly track utility meter readings by simply taking photos. The app automatically detects values and timestamps from your pictures, offering suggestions for easy confirmation. It supports various meter types and keeps all data securely on your device.

Highlights
  • Read meter values from photos
  • Automatic value and timestamp detection
  • Supports electricity, gas, and water meters
  • Handles day/night tariffs
  • On-device data processing
  • Export data to CSV
Features
Read full description

Meter readings from the photos you take anyway. Snap your electricity, gas or water meter with the Camera app whenever you walk past it. Roommate Albert later finds those photos in your library, reads the value and the time each was taken, and hands you a ready-made suggestion. One tap confirms it. HOW IT WORKS • Snap it: with the Camera app, Roommate Albert doesn’t have to be open. A photo from three months ago is found just like one from today. • Find it: in the Review tab, tap Search Photos. The app compares new photos with each meter’s reference photo and reads the serial number, so it tells apart two identical meters in the same basement. • Confirm it: every suggestion arrives filled in with meter, register, value and the date from the photo. A value lower than an earlier one is flagged for correction, because meters never run backwards. FOR YOUR METERS • Electricity, gas, cold water, hot water and heat • Day and night tariff meters as two registers (HT and NT) • Meter replacement: add the new meter as a new device, earlier readings stay, and the statistics show both in one series • Monthly consumption statistics • Enter a reading without a photo by hand under Enter Reading YOUR DATA • Everything stays on your iPhone: photos, recognition and readings are processed on the device. No server, no account. • Nothing enters your history before you confirm it. • Export as a ZIP with a CSV file for spreadsheets and the photos of all readings. • Import data from the previous version under Settings → Import, as often as you like, without duplicates. Reading with the on-device language model requires iOS 27 with Apple Intelligence; without it, text recognition reads on its own. Did the app misread a value or miss a meter? Write to us from Settings → Contact Support. Terms of Use: https://juliankahnert.de/roommate/en/terms/

About

Balkonizer

Monitor your mini solar power plant's electricity production in real-time. Track yields, analyze daily values, and optimize your self-consumption. See your savings and environmental impact at a glance.

Highlights
  • Live solar production monitoring
  • Detailed yield analysis (daily, monthly, yearly)
  • Savings calculator
  • CO2 emission reduction tracking
  • Modern iOS design
  • Optimize self-consumption
Features
Read full description

Hol das Maximum aus deiner Mini-PV-Anlage heraus! Mit Balkonizer behältst du die Stromproduktion deines Balkonkraftwerks jederzeit übersichtlich und in Echtzeit im Auge. Egal ob auf dem Balkon, der Terrassenseite oder dem Garagendach: Balkonizer liefert dir alle wichtigen Daten deiner Solaranlage direkt auf dein iPhone. Verfolge deine Erträge, analysiere Tageswerte und optimiere deinen Eigenverbrauch nachhaltig. DIE HIGHLIGHTS AUF EINEN BLICK: • Live-Monitoring: Sieh auf einen Blick, wie viel Watt deine Solarmodule aktuell produzieren. • Ertrags-Analysen: Detaillierte Statistiken und Grafiken nach Tag, Monat und Jahr. • Ersparnis-Rechner: Sieh direkt, wie viel Geld du durch selbst erzeugten Solarstrom bereits gespart hast. • Umwelt-Impact: Verfolge deine CO₂-Einsparung live mit. • Modernes iOS-Design: Schlanke, performante Oberfläche – perfekt optimiert für Swift & iOS. WARUM BALKONIZER? Balkonkraftwerke sind der einfachste Weg zur eigenen Energiewende. Balkonizer hilft dir dabei, den erzeugten Strom optimal zu nutzen. Erkenne Sonnen-Peak-Zeiten auf einen Blick, um stromintensive Haushaltsgeräte zielgerichtet einzuschalten. Lade Balkonizer jetzt herunter und starte dein smartes Energiemanagement!

Screenshots

Roommate Albert4 screens
Balkonizer4 screens

Verdict

The call

The clearest difference is monetization model: Balkonizer at free against Roommate Albert's paid. Balkonizer also leads on ads (none vs shown). On price, review sentiment, update cadence and in-app purchases 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

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 30, 2026 and November 1, 2026 respectively.

Scorecard2 real differences · 6 level
Roommate Albert versus Balkonizer: the parameters behind the verdict, then further details
ParameterRoommate AlbertBalkonizer
PriceFreeFree
Positive reviews52.4% of reviews — better50.0% of reviews
Update frequencyEvery 2 weeksEvery 2 weeks
AdsYesNo — better
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPadiPhone, iPad, Apple Watch — better
Requires iOS26.026.0
Further details — not scored
Size21 MB8 MB
Age rating4+4+
DeveloperJulian KahnertPatrick Rathjen

Customer experience

Roommate Albert

Written reviews21 reviews
Positive52.4%
Neutral23.8%
Negative23.8%

Balkonizer

Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Roommate Albert

No in-app purchases

None

Balkonizer

No in-app purchases

Questions

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

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