Comparison

SOL.AR.IS vs Reverse Audio

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

Head to head
About

SOL.AR.IS

Features
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SOL.AR.IS is a virtual space where the recipient has the opportunity to interact in real time with ephemeral, virtual 3D objects inspired by the fantastic phenomena created by extraterrestrial intelligence described in the science-fiction novel 'Solaris' written by Stanisław Lem. After scanning the space in the application, you will discover animated sculptures placed in the AR space, designed by the following artists: Oliver Latt from Germany, Yuma Yanagisawa from Japan, Uwe Rieger and Yinan Liu from New Zealand and Zsolt Laszlo Bordos, Gaspar Battha nad Popesz Csaba Láng from Hungary. Ambient soundscapes for each of the objects were composed by the Iranian audiovisual artist Ali Phi. The project is commissioned by Photon Foundation and subsidised by the National Centre for Culture under the programme ‘Kultura w sieci’.

About

Reverse Audio

Record or import audio and instantly play it backward. Enhance your sound with effects like pitch shifts, echo, and speed control. Perfect for pranks, music remixes, and creative sound design.

Highlights
  • Record live audio
  • Import audio files
  • Instant sound reversal
  • Pitch shift effects
  • Echo and speed control
  • Easy sharing
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Reverse Audio: flip any recording backwards and turn your voice into a Demon, Chipmunk, Helium, Giant or Robot. Ever wondered what your voice or favorite song sounds like in reverse? Record or import audio, reverse it in one tap, then warp it with playful voice presets and studio effects. Hear the result instantly, save it, and share it anywhere. VOICE PRESETS • Demon: deep and menacing • Chipmunk: high pitched and squeaky • Helium: light and airy • Giant: deep and booming • Robot: metallic and digital SOUND EFFECTS • Echo: repeating echoes • Reverb: wide room ambience • Slowed + Reverb: dreamy slow-room sound • Underwater: deep sea muffled • Custom: dial in your own pitch and speed WHY YOU WILL LOVE IT • Reverse in one tap: record live or import a file and play it backward right away • Layer effects: stack a voice preset with pitch, speed, echo and reverb • Compare instantly: switch between the original and your reversed mix • Import your own audio: MP3, WAV, M4A and more • Share anywhere: save your creation and send it to friends or social apps • On device: your recordings stay on your phone GREAT FOR • Pranking friends with demon and chipmunk voices • Decoding backmasking and hidden messages in songs • Singing backwards challenges and reverse covers • Sound design, skits and voiceovers Record, reverse, remix. Download Reverse Audio and hear the world in reverse. PURCHASE INFORMATION Reverse Audio is free to use and supported by ads. A one-time Remove Ads purchase removes all ads and unlocks every export format, including WAV and FLAC. Payment is charged to your Apple Account when you confirm the purchase. There is no subscription and no recurring billing. Terms of Use (EULA): https://getreverseaudio.app/terms Privacy Policy: https://getreverseaudio.app/privacy

Screenshots

SOL.AR.IS3 screens
Reverse Audio4 screens

Verdict

The call

The clearest difference is in-app purchases: SOL.AR.IS at none against Reverse Audio's 3. SOL.AR.IS also leads on ads (none vs shown) and update cadence (fortnightly vs monthly). On price 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. Reverse Audio sells 3 in-app purchases, starting at $0.99 per 7 days. SOL.AR.IS asks for nothing beyond the download.

UpkeepUpdate frequency

SOL.AR.IS ships an update fortnightly, Reverse Audio monthly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 6 level
SOL.AR.IS versus Reverse Audio: the parameters behind the verdict, then further details
ParameterSOL.AR.ISReverse Audio
PriceFreeFree
Rating—4.6 (23 ratings) — better
Positive reviews—33.3% of reviews
Number of ratings—23 — better
Update frequencyFortnightly — betterMonthly
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS17.016.4 — better
Further details — not scored
Size477 MB88 MB
Age rating4+4+
DeveloperFundacja PhotonFabulous Apps LLC

In-app purchases

None

SOL.AR.IS

No in-app purchases

3 purchases

Reverse Audio

Subscriptions2
  • Weekly Plan$0.997 Days
  • Annual Premium3 Days trial$14.991 Year
One-time1
  • Lifetime Plan$29.99

Questions

Is SOL.AR.IS free?
SOL.AR.IS is free to download, with no in-app purchases.
Is Reverse Audio free?
Reverse Audio is free to download, with in-app purchases available.
Do SOL.AR.IS or Reverse Audio have ads?
Reverse Audio shows ads; SOL.AR.IS does not.
Which is updated more often, SOL.AR.IS or Reverse Audio?
SOL.AR.IS ships an update fortnightly, and Reverse Audio monthly. Most recently, SOL.AR.IS was updated on November 3, 2026 and Reverse Audio on October 30, 2026.

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