Comparison

Messay2 vs Kidovix

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

Head to head
About

Messay2

Features
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Messay2 is an AAC (augmentative and alternative communication) app that allows you to communicate using your eyes. It is the second-generation, upgraded version of the original Messay app. Designed for individuals who have difficulty operating a smartphone with their fingers due to conditions such as ALS (Amyotrophic Lateral Sclerosis), Muscular Dystrophy, or MND (Motor Neuron Disease). By simply moving your eyes and face, you can operate the app and have your intended messages read aloud to others. Our goal is to make daily communication smoother and richer, even from the comfort of your bed. ■ 2 Communication Features Phrases function: Pre-register frequently used messages like "Thank you" or "I'm hot." Simply select a card using eye or facial movements, and your smartphone will read it aloud for you. Freeform function (Experimental): A feature that allows you to freely create and read aloud any sentence by selecting letters one by one from an on-screen keyboard. ■ Flexible Operation Methods Tailored to You You can combine the most comfortable operation methods to suit your physical condition on any given day. Cursor Movement: Choose between moving the cursor with your "Gaze" or using "Auto-scan" (Time Movement), where the cursor moves automatically at set intervals. Click Action: Set your selection button to an action you can perform comfortably, choosing from three options: "Blink," "Stare (Dwell)," or "Look sideways." Switch Control: In addition to eye movements, the app supports operation via external keyboards, game controllers, and commercially available AAC switches. ■ Useful Features to Support Daily Life Easy Calibration: Easily readjust the degree of eye opening and the reference point for eye tracking at any time. Call Bell feature: Add a "Call Bell" card to your Phrases. When selected, it plays music instead of reading text, allowing you to call family members or caregivers in another room. Sleep feature: Dims the screen and stops responding to all but specific actions. This prevents accidental operation and is perfect for when you are resting. Selectable Voice Output: Choose your preferred voice from the synthesized voices built into your smartphone. ■ Pricing Plans and Free Trial When you start using the app, a "7-Day Free Trial" automatically begins, allowing you to try all features, including unlimited text-to-speech. These "7 days" are counted based on the days you actually launch the app. If you don't use the app every day, the days won't decrease, allowing you to try it out at your own pace and according to your physical condition. Free Plan: After the free trial ends (on the 8th day of launching the app), you will automatically be transitioned to the Free Plan (you will not be automatically charged). You can use the text-to-speech feature up to 5 times a day. Premium Plan ($12.99/month or $129.00/year): Enjoy "unlimited" text-to-speech usage. Cloud backup for your registered Phrase data. Gives you peace of mind when changing devices or in case of device failure. "Early Access" to try out upcoming new features, such as the Freeform feature, before anyone else. ■ Disclaimer This app is designed to support daily communication and is not a medical device. We cannot guarantee its complete reliability as a substitute for an emergency nurse call or for critical, life-threatening communication. The accuracy of eye and face tracking using the camera may vary depending on your device's performance and environmental lighting (such as room lights or sunlight). Thank you for your understanding. ■ Supported Environment iOS15 or later ■ Support & Contact If you have any questions about how to set up the app, feature requests, or notice anything, please feel free to contact us. Contact Page: https://messay.ndk-group.co.jp/en/feedback/ Email: support@messay.ndk-group.co.jp

About

Kidovix

Easily manage family schedules and display photos with this utility app. It helps organize family events and share memories through a digital frame interface. Designed for simple, centralized family organization.

Highlights
  • Family schedule management
  • Photo frame display
  • Easy organization
  • Centralized family hub
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Kidovix Frame, Manage Your Family Schedules and Photos Frame with Ease.

Screenshots

Messay24 screens
Kidovix4 screens

Verdict

The call

The clearest difference is in-app purchases: Kidovix at none against Messay2's 2. Kidovix also leads on iOS requirement (13.0 vs 15.0). Messay2's advantage is update cadence (every 6 days vs every 2 weeks). On price, 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. Messay2 sells 2 in-app purchases, starting at $12.99 per month. Kidovix asks for nothing beyond the download.

UpkeepUpdate frequency

Messay2 ships an update every 6 days, Kidovix every 2 weeks. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 7 level
Messay2 versus Kidovix: the parameters behind the verdict, then further details
ParameterMessay2Kidovix
PriceFreeFree
Rating—3.0 (2 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 6 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size167 MB46 MB
Age rating4+4+
DeveloperNDK devYingRui Technology

In-app purchases

2 purchases

Messay2

Subscriptions2
  • Premium$12.991 Month
  • Premium$129.001 Year
None

Kidovix

No in-app purchases

Questions

Is Messay2 free?
Messay2 is free to download, with in-app purchases available.
Is Kidovix free?
Kidovix is free to download, with no in-app purchases.
Do Messay2 or Kidovix have ads?
Neither Messay2 nor Kidovix shows ads.
Which is updated more often, Messay2 or Kidovix?
Messay2 ships an update every 6 days, and Kidovix every 2 weeks. Most recently, Messay2 was updated on October 15, 2026 and Kidovix on October 24, 2026.

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