Comparison

Compress to KB vs SimProcedures

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

Head to head
About

Compress to KB

Features
Read full description

Compress to KB is a simple, private photo compression utility for iPhone. Use it when a website, form, exam registration, profile upload, or document submission requires a smaller image file. Key features: - Compress a photo to a target size such as 20 KB, 50 KB, 100 KB, 200 KB, or 500 KB - Enter a custom target KB size - Resize images by pixel width and height - Keep aspect ratio while resizing - Convert HEIC photos to JPG - Export as JPG or PNG - Remove EXIF, GPS, camera, and device metadata on export - Compare original size, output size, and dimensions - Save to Photos, share, or export to Files Privacy first: All image processing happens on your device. No account, no ads, no cloud upload, and no backend server are required for the core features. Free users can export 3 times. Pro is a one-time purchase that unlocks unlimited exports.

About

SimProcedures

Read full description

Stop flipping through PDFs. SimProcedures is a focused checklist companion for simulator pilots, with phase-by-phase procedures for 44 aircraft, Phase Briefings and an editor for creating your own aircraft. = READY TO FLY = Free, 24 aircraft: Air Tractor AT-802, Boeing 737 MAX 8, Cessna 152, Cessna 172 Skyhawk (Basic/GNS, G1000 and IFD), Cessna 185F Skywagon, Cessna 208B Grand Caravan EX, Citation CJ4 and Longitude, Cirrus Vision SF50, CubCrafters XCub, Daher TBM 930, De Havilland CL-415, Diamond DA40 NG and DA62, King Air 350i and C90GTx, Pilatus PC-12 NGX and PC-6/B2, Pipistrel Virus, Pitts S2S, Robin CAP 10 and Robin DR400. SimProcedures Pro, 11 aircraft plus editor: Baron G58, Boeing 747-8 and 787-10, Cessna 408 SkyCourier, Cirrus SR22T, DHC-6-300 Twin Otter, FlyByWire A32NX, iniBuilds A320neo and A330-300, Pilatus PC-24 and Saab 340B. Premium, 9 aircraft across 7 products: Daher Kodiak 100, Fenix A320, Aerosoft CRJ-700, Just Flight Hawk T1, PMDG 737-800, A2A Accu-Sim Aerostar 600 and Black Square Caravan Professional with Passenger, Amphibian and Cargomaster variants. = BUILT FOR THE COCKPIT = • Work through every checklist phase step by step • Open Phase Briefings when a phase contains useful supplementary reference values • Keep only one checklist active across the app • Use Flight Mode to keep the display awake during an active checklist • Continue an active checklist between iPhone and iPad with Handoff • Resume directly from the Lock Screen, Dynamic Island or Home Screen widget • Find aircraft quickly with search and favorites • Receive verified new and updated checklist content through the built-in catalog = EDITOR (Pro) = • Create your own aircraft with phases, items and critical notes • Duplicate any built-in aircraft and customize it • Start in English, then add German, French, Spanish or Italian translations • Sync your custom aircraft across devices through iCloud = NATIVE FOR iOS = • Native iPad split view designed for use beside your simulator • iCloud sync for custom aircraft, favorites and checklist progress • VoiceOver support and a dark cockpit theme • Universal app for iPhone and iPad with iOS 17 or later = DISCLAIMER = SimProcedures is intended exclusively for flight simulator use. It must not be used for real-world aviation. SimProcedures is not affiliated with any aircraft manufacturer or simulation add-on developer. Checklists are based on publicly available procedures and adapted for simulator use. = SIMPLE OWNERSHIP = • Free: 24 aircraft and the complete checklist flow • SimProcedures Pro: editor and 11 additional aircraft as a one-time purchase • Premium: 9 advanced simulation aircraft across 7 one-time purchases No subscriptions. No tracking. No advertising. Restore purchases at any time. Feedback: contact@elmundi.net Developed by ElMundi Labs.

Screenshots

Compress to KB4 screens
SimProcedures4 screens

Verdict

The call

The clearest difference is in-app purchases: Compress to KB at none against SimProcedures's 7. On price, update cadence, ads 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. SimProcedures sells 7 one-off in-app purchases. Compress to KB asks for nothing beyond the download.

UpkeepUpdate frequency

Compress to KB ships an update every 6 days, SimProcedures every 5 days. The most recent releases landed on October 19, 2026 and October 10, 2026 respectively.

Scorecard1 real difference · 5 level
Compress to KB versus SimProcedures: the parameters behind the verdict, then further details
ParameterCompress to KBSimProcedures
PriceFreeFree
Update frequencyEvery 6 daysEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhoneiPhone, iPad — better
Requires iOS17.017.0
Further details — not scored
Size1 MB6 MB
Age rating4+4+
Developer斌 杨Holger Mundt

In-app purchases

None

Compress to KB

No in-app purchases

7 purchases

SimProcedures

One-time7
  • Kodiak 100 Series II$1.99
  • PMDG 737-800$1.99
  • Fenix A320$1.99
Show 4 more
  • Aerosoft CRJ-700$1.99
  • Just Flight Hawk T1$1.99
  • A2A Accu-Sim Aerostar 600$1.99
  • SimProcedures Pro$3.99

Questions

Is Compress to KB free?
Compress to KB is free to download, with no in-app purchases.
Is SimProcedures free?
SimProcedures is free to download, with in-app purchases available.
Do Compress to KB or SimProcedures have ads?
Neither Compress to KB nor SimProcedures shows ads.
Which is updated more often, Compress to KB or SimProcedures?
Compress to KB ships an update every 6 days, and SimProcedures every 5 days. Most recently, Compress to KB was updated on October 19, 2026 and SimProcedures on October 10, 2026.

Other comparisons