Comparison

Voidol vs Multiplayer 1A2B

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

Head to head
About

Voidol

Transform your voice in real-time or with a slight delay using AI technology. Choose from preset character voices or purchase additional voice models. Record and save your converted audio for sharing.

Highlights
  • Real-time voice conversion
  • Imitation (Parrot) mode
  • AI-powered voice morphing
  • Preset character voices
  • In-app purchase voice models
  • Voice recording and saving
  • Handsfree headset support
Read full description

Powerful update to Voidol: mobile, the iOS version of real-time voice conversion software Voidol. In addition to the Realtime Talk Mode, a new Parrot (Imitation) Mode has been added to this application. You can switch these two modes by tapping character icon. Parrot (Imitation) Mode: To speak into the iPhone, and the converted voice will be played after soon. Realtime Talk Mode: You can convert your voice in real time by speaking into your iPhone, Recording is also available. The application changes your voice into various character’s voice in real-time by AI technology. In the application, seven characters have been installed as the preset voice models. (Male voice model “Kanade Minato”, “Otoshiro Tsukasa”, “Jack Blow”, Female voice model “Queen Shuffle”, “Rice Chan”, “Miranda” and Boyish female voice model “CRIMMZOH”) You can also install other voice models with in-app purchase. The lineup of the in-app purchase ranges from well-known characters to Crimson Technology's original characters and includes Tohoku Zunko (CV: Satomi Sato)", "Tohoku Kiritan (CV: Himika Akaneya)", "Takanotsume-dan Yoshida-kun (CV: FROGMAN)". [How to play] 1. You can play with iPhone alone, but if you want to enjoy voice change with clearer sound, please use a handsfree headset. (You can also play with the earphone with microphone attached to the iPhone) 2. When using the built-in microphone of the iPhone, you can reduce feedback noise by playing with rotation lock switch off. 3. In the Realtime Talk Mode, you can record a converted voice with the red button at the bottom right. After stopping recording, open the “RecordedList” from the setting icon on the upper right, and a list of recorded data will appear. You can save it on your iPhone or send it by email. [Notes when playing] ・ The Realtime Talk Mode is in the mute at first setup. When using earphones with a microphone, please cancel the mute after connecting the earphones. -If you make a big sound from the iPhone speaker, unpleasant noise is likely to occur due to the feedback. If you are concerned about noise, please lower the volume to play or use a handsfree headset. -When using the built-in microphone of iPhone, the output volume is muted to avoid the feedback noise, but the converted voice is recorded normally. ・ After selecting a voice model, please select the narrator type that sounds good for you from the narrator list. [About Voidol] Voidol is AI real-time voice conversion application that can change your voice into various character’s voice. You can use this software for game streaming, online chat, or YouTube videos. Voidol macOS version won the number one sale on the paid software category on Mac App Store. Voidol Windows version won the number one on the most purchased software category on Amazon.jp. Voidol2 is now available. In addition to the conventional AI mode, a new SYNTH mode has been added. [About R.C.voice] R.C.voice = “R” means “real-time & real-quality”, “C” means “Changer”. Voidol uses R.C.voice technology developed by CRIMSON TECHNOLOGY, Inc. This technology is based on CRIMSON TECHNOLOGY’s original “Metamorphone” method. It has been developed in partnership with the research team of Prof. Toda Tomoki of Nagoya University. ・Specification - Sampling Frequency: 44100Hz - Bit Width: 16bit - Latency: within 100ms - Pitch shifter is used for the voice conversion between male and female. ※Mac App Store, iOS, iPhone is a trademark of Apple Inc. ※R.C.voice is the registered trademark of CRIMSON TECHNOLOGY, Inc. ※Voidol is a trademark of CRIMSON TECHNOLOGY, Inc. ※Described company name and product name are the registered trademarks or trademarks of each company. ※All information including product specifications, is current on the date of the press announcement, but is subject to change without prior notice.

About

Multiplayer 1A2B

Features
Read full description

There is a number. You don’t know it. Your brain wants it. No hints. No patterns given. No luck hacks. Just you versus a hidden number. Type your guess. Get instant feedback. Adjust. Try again. Lock in. This game quietly trains your intuition, attention, and decision speed while feeling dangerously addictive. Short rounds. Pure focus. Real satisfaction when you hit it. Play when you’re bored. Play when you’re sharp. Play to prove your mind still works. One number. One goal. Infinite tries. Enter. Guess. Win.

Screenshots

Voidol4 screens
Multiplayer 1A2B3 screens

Verdict

The call

The clearest difference is in-app purchases: Multiplayer 1A2B at none against Voidol's 10. Multiplayer 1A2B also leads on ads (none vs shown) and update cadence (every 8 days vs every 3 months). Voidol's advantage is iOS requirement (13.0 vs 15.1). On price 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. Voidol sells 10 one-off in-app purchases. Multiplayer 1A2B asks for nothing beyond the download.

UpkeepUpdate frequency

Voidol ships an update every 3 months, Multiplayer 1A2B every 8 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
Voidol versus Multiplayer 1A2B: the parameters behind the verdict, then further details
ParameterVoidolMultiplayer 1A2B
PriceFreeFree
Rating2.3 (10 ratings) — better—
Positive reviews17.9% of reviews—
Number of ratings10 — better—
Update frequencyEvery 3 monthsEvery 8 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPod
Requires iOS13.0 — better15.1
Further details — not scored
Size252 MB19 MB
Age rating4+4+
DeveloperCRIMSON TECHNOLOGY, IncYalcın OZER

In-app purchases

10 purchases

Voidol

One-time10
  • Otoshiro TsukasaFree
  • MirandaFree
  • Rice ChanFree
Show 7 more
  • Otomiya Iroha$3.99
  • Otomiya Urala$3.99
  • Sophia Lambfield$3.99
  • Tohoku Zunko$29.99
  • Koeno Tsubasa$29.99
  • Megpoid$29.99
  • Otomachi Una$29.99
None

Multiplayer 1A2B

No in-app purchases

Questions

Is Voidol free?
Voidol is free to download, with in-app purchases available.
Is Multiplayer 1A2B free?
Multiplayer 1A2B is free to download, with no in-app purchases.
Do Voidol or Multiplayer 1A2B have ads?
Voidol shows ads; Multiplayer 1A2B does not.
Which is updated more often, Voidol or Multiplayer 1A2B?
Voidol ships an update every 3 months, and Multiplayer 1A2B every 8 days. Most recently, Voidol was updated on November 3, 2026 and Multiplayer 1A2B on October 31, 2026.

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