Comparison

SolarShield Geomagnetic Alerts vs Convertall

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

Head to head
About

SolarShield Geomagnetic Alerts

Features
Read full description

SolarShield is a simple alerts-first app without all the fluff. We do alerts first! Most solar storm apps tell you too late, if at all. SolarShield will usually give you 15 to 40 minutes of advance warning so you can unplug or shield critical electronics. Uses AI (machine learning) models and data from multiple sources including space based observations to provide accurate estimates before they arrive. Protect yourself from the next Carrington Event! The app shows recent history and upcoming predictions in an easy to read chart. You can enable multiple notifications for whatever levels concerns you.

About

Convertall

Features
Read full description

The unit converter that gets out of your way. Type a value and every result updates instantly — no "convert" button, no clutter, no waiting. WHY YOU'LL KEEP IT • Live as-you-type conversion — results change with every keystroke • See every unit at once — one value, the whole category converted • Pin and reorder your favorites — the units you actually use, on top (most apps force alphabetical order; this one doesn't) • Conversions work 100% offline — no account, no sign-up, nothing to load • One discreet banner — remove it forever with a single purchase. No full-screen ads, no video, no subscription. 13 CATEGORIES, 94 UNITS Length • Weight • Volume • Temperature • Area • Speed • Time • Data storage • Pressure • Energy • Power • Angle • Data rate Everyday conversions other apps skip: internet speed (Mbps ⇄ MB/s), cooking measures (tablespoons, cups, oven thermostat) and land area (hectares, ares, acres). From meters and miles to Celsius and Fahrenheit, kilograms and pounds, liters and gallons, megabytes and gigabytes, and more. MADE WITH CARE • Clean design where the number is king • Full dark mode • VoiceOver and Dynamic Type support • Available in 10 languages Tap any result to copy it. A converter that just works.

Screenshots

SolarShield Geomagnetic Alerts2 screens
Convertall4 screens

Verdict

The call

The clearest difference is in-app purchases: SolarShield Geomagnetic Alerts at none against Convertall's 1. SolarShield Geomagnetic Alerts also leads on update cadence (fortnightly vs every 5 weeks) and device support (3 vs 1). On price and ads there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Convertall sells 1 one-off in-app purchase. SolarShield Geomagnetic Alerts asks for nothing beyond the download.

UpkeepUpdate frequency

SolarShield Geomagnetic Alerts ships an update fortnightly, Convertall every 5 weeks. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

Scorecard4 real differences Ā· 2 level
SolarShield Geomagnetic Alerts versus Convertall: the parameters behind the verdict, then further details
ParameterSolarShield Geomagnetic AlertsConvertall
PriceFreeFree
Update frequencyFortnightly — betterEvery 5 weeks
AdsYesYes
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.5.0 — better18.0
Further details — not scored
Size32 MB5 MB
Age rating4+4+
DeveloperSimon McAuliffeLaurent ABITBOL

In-app purchases

None

SolarShield Geomagnetic Alerts

No in-app purchases

1 purchases

Convertall

One-time1
  • Remove Ads$2.99

Questions

Is SolarShield Geomagnetic Alerts free?
SolarShield Geomagnetic Alerts is free to download, with no in-app purchases.
Is Convertall free?
Convertall is free to download, with in-app purchases available.
Do SolarShield Geomagnetic Alerts or Convertall have ads?
Both SolarShield Geomagnetic Alerts and Convertall show ads.
Which is updated more often, SolarShield Geomagnetic Alerts or Convertall?
SolarShield Geomagnetic Alerts ships an update fortnightly, and Convertall every 5 weeks. Most recently, SolarShield Geomagnetic Alerts was updated on November 8, 2026 and Convertall on October 31, 2026.

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