Comparison

Xsimple Voice Studio vs Apollo App Builder

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

Head to head
About

Xsimple Voice Studio

Transform text into natural-sounding speech using AI voice cloning. Create custom voice profiles from your own voice or utilize a library of anime-style AI characters for videos, podcasts, and stories. Export audio in WAV format for easy integration into your projects.

Highlights
  • AI voice cloning from reference clips
  • Library of anime-style AI character voices
  • Text-to-speech generation
  • Save and reuse voice profiles
  • Export audio as WAV
  • Suitable for videos, podcasts, and audiobooks
Features
Read full description

Xsimple Voice Studio helps you turn text into speech, create a voice from a reference recording, and explore spoken conversations with AI characters. Create audio from your own writing, choose from AI voices, or record/import a reference clip for voice cloning. In Voice Chat, choose a role and hear spoken replies. Use only recordings and other content you own or have permission to use. Features: - AI Voices for text-to-speech creation - AI Voice Clone with recorded or imported reference audio - Voice Chat with selectable roles and character portraits - Audio playback and WAV export - English and Simplified Chinese app languages Plans: - Free: 5 syntheses per day, up to 50 characters per synthesis - Pro: unlimited synthesis count, up to 2,000 characters per synthesis, and 10 Voice Chats per day - Pro Max: unlimited synthesis count, up to 2,000 characters per synthesis, and unlimited Voice Chats Voice Chat requires a subscription. AI chat and custom-role portrait creation require separate in-app data-sharing permission. You can review or withdraw this permission in Settings. Subscriptions renew automatically unless cancelled; current prices and eligible offers are shown before purchase. Privacy Policy: https://www.xmaillc.com/xvoice-privacy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Apollo App Builder

Read full description

Turn an app idea into a project you can build, test, and improve from your iPhone. Apollo App Builder brings AI development, project previews, and guided iPhone publishing into one place. START WITH AN IDEA Describe what you want to make. Connect your supported AI account, answer follow-up questions, and let Apollo organize the work in a private cloud workspace. SEE YOUR PROGRESS Preview your app, review its source, request changes, and keep track of saved versions. The Projects tab shows where each app stands, from the first idea through testing builds and upload to App Store Connect. TEST ON YOUR IPHONE Follow the guided developer-account and signing setup to create a signed testing build. Install your own app on a registered iPhone and try it before publishing. PREPARE FOR APP STORE CONNECT Apollo guides you through connecting Apple Developer and Expo accounts, preparing a distribution build, and uploading it to your own App Store Connect app. You finish your store listing and submit it to Apple for review. CHOOSE YOUR PLAN Start with Free, subject to available capacity. Builder and Pro offer additional projects, concurrent workspaces, and shared development time. Paid plans are monthly auto-renewing subscriptions purchased through the App Store. See the current price and included allowances in the app. Restore purchases and manage your subscription from Plans. WHAT YOU NEED An Apollo account and a supported AI-provider account are required for AI development. Provider subscriptions, usage limits, and charges apply separately. Native iPhone builds and uploads require your own eligible Apple Developer and Expo accounts; their fees and limits apply separately. Generated apps require testing. Uploading does not guarantee App Store approval. Privacy: https://apolloappbuilder.com/privacy/ Terms: https://apolloappbuilder.com/terms/ Support: https://apolloappbuilder.com/support/

Screenshots

Xsimple Voice Studio4 screens
Apollo App Builder3 screens

Verdict

The call

The clearest difference is ads: Apollo App Builder at none against Xsimple Voice Studio's shown. Apollo App Builder also leads on iOS requirement (16.4 vs 18.0). On price, update cadence, in-app purchases 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. Xsimple Voice Studio sells 2 in-app purchases, starting at $2.99 per month and Apollo App Builder sells 2 in-app purchases, starting at $29.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Xsimple Voice Studio ships an update every 4 days, Apollo App Builder every 5 days. The most recent releases landed on October 19, 2026 and October 17, 2026 respectively.

Scorecard2 real differences · 8 level
Xsimple Voice Studio versus Apollo App Builder: the parameters behind the verdict, then further details
ParameterXsimple Voice StudioApollo App Builder
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 4 days — betterEvery 5 days
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone
Requires iOS18.016.4 — better
Further details — not scored
Size149 MB56 MB
Age rating12+17+
DeveloperXM LLC (US)James Zampa

In-app purchases

2 purchases

Xsimple Voice Studio

Subscriptions2
  • Monthly Pro Subscription7 Days trial$2.991 Month
  • Monthly Pro Max Subscription$9.991 Month
2 purchases

Apollo App Builder

Subscriptions2
  • Apollo Builder$29.991 Month
  • Apollo Pro$59.991 Month

Questions

Is Xsimple Voice Studio free?
Xsimple Voice Studio is free to download, with in-app purchases available.
Is Apollo App Builder free?
Apollo App Builder is free to download, with in-app purchases available.
Do Xsimple Voice Studio or Apollo App Builder have ads?
Xsimple Voice Studio shows ads; Apollo App Builder does not.
Which is updated more often, Xsimple Voice Studio or Apollo App Builder?
Xsimple Voice Studio ships an update every 4 days, and Apollo App Builder every 5 days. Most recently, Xsimple Voice Studio was updated on October 19, 2026 and Apollo App Builder on October 17, 2026.

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