Comparison

FlashSOS Emergency Flashlight vs Cyatal

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

Head to head
About

FlashSOS Emergency Flashlight

Features
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β–  One-Tap SOS Strobe Emergency Signal Long-press to fire the international standard SOS pattern (3-short / 3-long / 3-short) with synchronised flash and haptics. Strobe adjustable from 1 Hz to 20 Hz. Auto-throttles on low battery and cools down if the torch overheats β€” never dies when you need it most. Mis-touch protection (1.0s–3.0s long-press confirmation) prevents pocket fires wasting juice. Dual sync: camera torch + full-screen colour flash doubles your visible distance at night. β–  Morse Code Encoding Engine Type any text (English, Chinese, digits, or symbols) β€” FlashSOS auto-encodes it into clean on/off light pulses. 5 playback speeds: 0.5Γ— / 1Γ— / 1.5Γ— / 2Γ— / 4Γ—; base unit duration customisable from 50 ms to 1000 ms. Includes a full printable Morse reference table inside the app. Use it for backcountry distress, covert signals, concert fan light shows, or team codes. β–  Custom Rhythm Editor (Upgrade to Pro β€” Lifetime Unlock) Three creative ways to build your own flash pattern: β‘  BPM Beat Mode β€” slide from 30 BPM to 300 BPM, every beat fires with millisecond-accurate sync; β‘‘ Preset Rhythm Library β€” 10 built-in scene patterns: Heartbeat / Breathing Light / Lighthouse Beacon / Red-Blue Police Siren @ 1Hz / Concert Cheer @ 120 BPM / SOS International Distress / Strobe Alert @ 8 Hz / 4-4 Rave Kick @ 128 BPM / Flickering Candle / Railway Hand Signal; β‘’ Manual Tap Recorder β€” tap the rhythm you want on-screen, we capture the exact ON/OFF timeline locally on your device. β–  Why Choose FlashSOS β€’ Runs 100% locally on-device. Your typed text, saved phrases, recorded rhythms and history stay inside your iPhone's encrypted sandbox. Nothing uploads to any server, ever β€” no internet connection required at all. β€’ Zero privacy footprint. No sign-in, no location requests, no IDFA collection, no background tracking. Only asks for camera (torch LED) permission when you actively tap the flash button, and you can revoke it any time in iOS Settings. β€’ 12 native languages: Simplified Chinese, Traditional Chinese, English, French, German, Spanish, Italian, Portuguese, Russian, Japanese, Korean, Arabic. β€’ Transparent privacy policy: full stand-alone page (linked in-app and on App Store) explains exactly what we do and do NOT do with every iOS permission we request. β–  FlashSOS Pro (one-time unlock or monthly plan) Unlocks all three premium features: Morse Code, Custom Beats and Strobe Warning. The SOS emergency tab stays 100% free forever - life-saving functions are never paywalled. Restore Purchases and Family Sharing work on the same Apple ID. Subscription: payment is charged to your Apple ID at confirmation. The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period, and each renewal is charged at the same price within 24 hours before the period ends. Manage it in Settings > Apple Account > Subscriptions. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Cyatal

Features
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Cyatal Clock turns your device into a stylish retro clock for your desk, nightstand, or charging stand. Start with the animated Flip face, or choose Classic, Dot Matrix, or Seven-Segment LED. Enjoy large, readable digits, an AMOLED-friendly dark display, and custom accent colors that suit your space. Features: - Four clock faces: Classic, Flip, Dot Matrix, and Seven-Segment LED - Smooth digit animations on the Flip face - Clock face previews in Settings - AMOLED-friendly dark clock surface - Custom accent colors across all clock faces - Retro font choices for the Classic face - 12-hour and 24-hour time formats - Optional seconds display - Keep-screen-awake control - Charging-aware screensaver using your selected clock face - Home-screen clock widgets - Reduced-motion and accessibility support Make it yours Preview the clock faces, choose your favorite, and customize its color. Your selection is saved for the next time you open the app. The four clock faces are available in the app and screensaver; home-screen widgets retain their familiar digital style. Built for everyday moments Use Cyatal Clock as a nightstand clock while charging, a desk clock during work, or a home-screen widget for quick time checks. Cyatal Clock keeps the experience focused on showing the time clearly, with simple controls and a clean layout. The app may show ads to support development. Privacy Policy: https://cyatal.com/cyatal-clock/privacy Support: https://cyatal.com/cyatal-clock/support

Screenshots

FlashSOS Emergency Flashlight4 screens
Cyatal4 screens

Verdict

The call

The clearest difference is in-app purchases: Cyatal at none against FlashSOS Emergency Flashlight's 1. Cyatal also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). FlashSOS Emergency Flashlight's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 3 months). On price there is nothing between them.

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

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

Both are free to download. FlashSOS Emergency Flashlight sells 1 one-off in-app purchase. Cyatal asks for nothing beyond the download.

UpkeepUpdate frequency

FlashSOS Emergency Flashlight ships an update every 3 weeks, Cyatal every 3 months. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard5 real differences Β· 1 level
FlashSOS Emergency Flashlight versus Cyatal: the parameters behind the verdict, then further details
ParameterFlashSOS Emergency FlashlightCyatal
PriceFreeFree
Update frequencyEvery 3 weeks β€” betterEvery 3 months
AdsNo β€” betterYes
In-app purchasesYesNo β€” better
DevicesiPhoneiPhone, iPad, iPod β€” better
Requires iOS17.015.0 β€” better
Further details β€” not scored
Size2 MB25 MB
Age rating4+4+
Developerζ™“εΌΊ 江ADSTER TECHNOLOGIES PRIVATE LIMITED

In-app purchases

1 purchases

FlashSOS Emergency Flashlight

One-time1
  • FlashSOS Pro (Morse + Beat Forever)$1.99
None

Cyatal

No in-app purchases

Questions

Is FlashSOS Emergency Flashlight free?
FlashSOS Emergency Flashlight is free to download, with in-app purchases available.
Is Cyatal free?
Cyatal is free to download, with no in-app purchases.
Do FlashSOS Emergency Flashlight or Cyatal have ads?
Cyatal shows ads; FlashSOS Emergency Flashlight does not.
Which is updated more often, FlashSOS Emergency Flashlight or Cyatal?
FlashSOS Emergency Flashlight ships an update every 3 weeks, and Cyatal every 3 months. Most recently, FlashSOS Emergency Flashlight was updated on October 25, 2026 and Cyatal on October 24, 2026.

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