Comparison

FlexiGas vs Sound Amplifier +

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

Head to head
About

FlexiGas

Features
Read full description

FlexiGas makes managing your home gas effortless. Order cylinder refills or schedule automatic deliveries in seconds, pay securely using saved cards or mobile wallets, and get timely reminders so you never run out. Track your gas usage with intuitive visuals and usage history, receive real-time delivery updates, and access exclusive offers and credits. Built-in KYC and secure account management keep your information safe, while our support team is available through the app for any questions. Whether you need a one-off refill or a recurring delivery plan, FlexiGas delivers convenience, transparency, and peace of mind — all from your phone. Key Features Easy Ordering: Schedule or place one-time refills in seconds. Auto-Refill: Set recurring deliveries so you never run out. Secure Payments: Save cards and use mobile wallets with encryption. Usage Insights: Visual gas-level and consumption charts. Delivery Tracking: Real-time status and ETA for each order. Order History: View receipts, invoices, and past deliveries. Notifications: Refill reminders, promos, and delivery alerts. Support: In-app help and customer service.

About

Sound Amplifier +

Enhance your hearing in everyday situations. This tool uses your phone's microphone to amplify nearby sounds and deliver them to your earphones in real time. Adjust sound with an equalizer, reduce background noise, and protect your hearing with a volume limiter.

Highlights
  • Live audio amplification
  • 3-band equalizer with presets
  • Speech boost and noise reduction
  • Left/right balance control
  • Safe-volume limiter
  • Offline functionality
Features
Read full description

Sound Amplifier picks up the voices and sounds around you with your phone's microphone and plays them into your earphones in real time — so a soft-spoken friend, the TV across the room or a lecture from the back row comes through more clearly. Missed what someone just said? Tap Replay last 10s to hear the last 10 seconds again. Want the sound shaped for your own ears? Take the short Hearing Test and a personal EQ is built from your answers. Please note: Sound Amplifier is an everyday assistive listening tool. It is not a medical hearing aid and it does not diagnose hearing loss. LISTEN • Live amplification from 0 to +40 dB, with a live level meter • Replay the last 10 seconds — kept in memory only and cleared when you stop • Voice leveller that evens out loud and soft voices automatically • Noise reduction that cuts low rumble from air conditioning, traffic and wind TUNE • 3-band equalizer: bass, mid and treble, each ±12 dB • Presets for Speech, Music, Outdoor and Flat • A Personal preset created from your Hearing Test • Left/right balance for when one ear needs more HEARING TEST • Soft tones at 250, 500, 1,000, 2,000, 4,000 and 6,000 Hz, one ear at a time • Turn the result into a personal EQ with one tap • Hearing over time: compare later tests with your first one (changes under 10 dB are shown as no change) • Earphones or headphones are required, because each ear is tested separately MY SETUPS • Save up to 8 named setups — TV, restaurant, lecture — and bring one back with a tap SAFETY • A safety limiter caps loud peaks at a level you choose (-18 to 0 dBFS) • The app will not amplify through the phone's own speaker, where the microphone would pick the sound up again and howl • If your earphones disconnect, amplifying stops and a card explains why; reconnect them and tap Resume GOOD FOR • TV dialogue without turning the room volume up for everyone • Conversations in cafés, restaurants and family dinners • Lectures, sermons, meetings and guided tours • Birdsong and quiet sounds on a walk Tips: start with low amplification and raise it slowly. Wired earphones have the shortest delay; Bluetooth earphones work too but add a little lag. If you are worried about your hearing, please talk to a hearing professional.

Screenshots

FlexiGas4 screens
Sound Amplifier +3 screens

Verdict

The call

The clearest difference is ads: FlexiGas at none against Sound Amplifier +'s shown. Sound Amplifier +'s advantage is update cadence (every 4 days vs every 10 days). On price, in-app purchases, device support and iOS requirement 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

FlexiGas ships an update every 10 days, Sound Amplifier + every 4 days. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
FlexiGas versus Sound Amplifier +: the parameters behind the verdict, then further details
ParameterFlexiGasSound Amplifier +
PriceFreeFree
Rating—4.0 (14 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—14 — better
Update frequencyEvery 10 daysEvery 4 days — better
AdsNo — betterYes
In-app purchasesNoNo
Monetization—Ad-supported
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better16.4
Further details — not scored
Size22 MB61 MB
Age rating4+17+
DeveloperFLEXIGAS LIMITEDheekyung moon

In-app purchases

None

FlexiGas

No in-app purchases

None

Sound Amplifier +

No in-app purchases

Questions

Is FlexiGas free?
FlexiGas is free to download, with no in-app purchases.
Is Sound Amplifier + free?
Sound Amplifier + is free to download, with no in-app purchases.
Do FlexiGas or Sound Amplifier + have ads?
Sound Amplifier + shows ads; FlexiGas does not.
Which is updated more often, FlexiGas or Sound Amplifier +?
FlexiGas ships an update every 10 days, and Sound Amplifier + every 4 days. Most recently, FlexiGas was updated on October 24, 2026 and Sound Amplifier + on October 31, 2026.

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