Comparison

Quappen vs Solar Panel Angle Calculator

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

Head to head
About

Quappen

Features
Read full description

Ab dem Jahr 2020 ist in NRW für eine ausgewählte Gewässerkulisse, in der Wiederansiedlungen mit der Quappe stattfinden, die Entnahme von Fischen durch Angler zum Verzehr erlaubt. Diese Genehmigung ist verbunden mit einer Verpflichtung, gefangene Quappen und deren Entnahme zu melden. Für eine Entnahme sind folgende Regelungen zu beachten: • Das Mindestmaß beträgt 35 cm. • Pro Angeltag und Angler/in dürfen max. zwei Fische entnommen werden. • Es gilt eine Schonzeit vom 15.12. bis 28.02., in der keine Fische entnommen werden dürfen. Die Quappen-App des LFV Westfalen und Lippe e.V. ist entwickelt worden, um Quappenfänge direkt am Gewässer möglichst einfach und schnell melden zu können. Für die Meldung sind nur wenige Informationen einzutragen. Hierzu gehören die Körperlängenklasse, der Fangort und das Fanggewässer sowie die Angabe, ob der Fisch entnommen oder zurückgesetzt wurde. Der Fangort kann über die eingebundene Kartenfunktion ausgewählt und in die Meldung übernommen werden. Optional kann auch noch ein Foto als Beleg mitgeschickt werden. Die Meldung der Quappenfänge erfolgt direkt an den LFV Westfalen und Lippe e.V., der die Daten sammelt und auswertet.

About

Solar Panel Angle Calculator

Features
Read full description

Portable solar panels aren't roof panels. The "just tilt it to 30°" advice is simply wrong when you're only charging for a few hours at a campsite. SolarPanelAngle finds the angle and direction that harvest the most energy for YOUR hours in the sun — then helps you physically aim the panel until it's right. HOLD YOUR PHONE TO THE PANEL - Lay your iPhone flat against the panel and it reads the real tilt and heading - A two-axis target shows exactly how to adjust: "raise 8°, swing 12° right" - Sound and haptics guide you when you can't see the screen — because your hands are on the panel, not the phone - Turns green the moment it's aimed OPTIMIZED FOR YOUR HOURS, NOT THE WHOLE YEAR - Tell it how long you'll charge — it finds the single best fixed angle for that window - Or track the sun right now for maximum instant output - A daily power curve shows what each angle earns, and compares flat vs best-fixed vs tracking A NUDGE WHEN IT'S TIME TO RE-TILT - Portable setups drift as the sun moves — get reminded when to adjust - "14:00 — set tilt to 55°", scheduled to your own rhythm - A shade warning before a tree or ridge blocks your panel, and a pack-up heads-up before sunset SEE THE SHADE COMING - Scan the horizon around your site and it predicts when the sun drops behind obstacles - "Effective sunlight 4.2 h (10:40–14:50)" — save each campsite and reuse it FULLY OFFLINE — BUILT FOR THE BACKCOUNTRY - The sun is computed on your device from date and location. No internet, ever - Temperature loss is built in, so summer estimates match reality - One-time purchase. No subscription, no ads, no account. Nothing leaves your phone SolarPanelAngle is a planning aid. Estimates assume clear sky; real output varies with clouds, temperature, shade and panel condition. Never stare at the sun or point the camera at it for long.

Screenshots

Quappen2 screens
Solar Panel Angle Calculator4 screens

Verdict

The call

The clearest difference is price: Quappen at Free against Solar Panel Angle Calculator's $1.99. Quappen also leads on device support (3 vs 1) and iOS requirement (11.0 vs 17.0). Solar Panel Angle Calculator's advantage is update cadence (every 6 weeks vs every 7 months). On ads 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

Quappen is free to download; Solar Panel Angle Calculator costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Quappen ships an update every 7 months, Solar Panel Angle Calculator every 6 weeks. The most recent releases landed on September 17, 2026 and September 13, 2026 respectively.

Scorecard4 real differences · 2 level
Quappen versus Solar Panel Angle Calculator: the parameters behind the verdict, then further details
ParameterQuappenSolar Panel Angle Calculator
PriceFree — better$1.99
Update frequencyEvery 7 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS11.0 — better17.0
Further details — not scored
Size0 MB10 MB
Age rating4+4+
DeveloperLandesfischereiverband Westfalen und LippeNetflowers Inc.

In-app purchases

None

Quappen

No in-app purchases

None

Solar Panel Angle Calculator

No in-app purchases

Questions

Is Quappen free?
Quappen is free to download, with no in-app purchases.
Is Solar Panel Angle Calculator free?
Solar Panel Angle Calculator costs $1.99, with no in-app purchases.
Do Quappen or Solar Panel Angle Calculator have ads?
Neither Quappen nor Solar Panel Angle Calculator shows ads.
Which is updated more often, Quappen or Solar Panel Angle Calculator?
Quappen ships an update every 7 months, and Solar Panel Angle Calculator every 6 weeks. Most recently, Quappen was updated on September 17, 2026 and Solar Panel Angle Calculator on September 13, 2026.

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