Castflow AI Podcast Transcript vs Iris
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Castflow AI Podcast Transcript
This podcast app offers AI-driven recommendations and advanced playback features. It allows for importing existing podcast libraries and provides tools for managing your listening experience.
- AI-driven podcast recommendations
- AI Transcript
- OPML batch import
- RSS feed support
- Queue play
- Adjustable playback speed
- Jump audio blank
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Castflow is a podcast app that recommends that users use subjective choices to listen to podcasts and avoid overuse of platform recommendation algorithms. You need to make a purchase to experience the following features: - AI Transcript - Explore new podcasts within the app - Support Pocket casts, Overcast, Small Universe OPML batch import - Support adding podcasts by RSS feed - Queue play - Adjustable multiplier speed - Jumping audio blank - Save cover - Text mode - Layout adjustment - Episode show notes share long image In-App Purchase: Payment will be charged to your Apple ID account at the confirmation of purchase. Subscription automatically renews unless it is canceled at least 24 hours before the end of the current period.Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your account settings in the App Store after purchase. Email jiangdi0924@gmail.com Terms: https://castflow-podcast.notion.site/Terms-b8d352e562864d53b119e0b1cf8fbfbf Privacy: https://castflow-podcast.notion.site/Privacy-Policy-41bb9727b7d34bf9a5f553f69a4eb822 EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Iris
This app transforms articles and newsletters into personalized audio episodes using AI-powered text-to-speech. It automatically discovers subscriptions from your Gmail and allows you to schedule daily audio briefings. Listen to any web article by sharing it directly to the app.
- Article to podcast conversion with AI voices
- Automatic Gmail subscription discovery
- Scheduled daily audio episodes
- Share any web article for listening
- Background playback and queue management
- Light and dark mode support
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The reading app you've always wanted. Iris turns your favorite articles into personal podcast episodes. Connect your Gmail and Iris discovers your subscriptions automatically. Using AI-powered text-to-speech, it transforms written articles and newsletters into studio-quality audio you can listen to anywhere — while commuting, working out, or getting ready in the morning. Your Personal Podcast, On Autopilot Schedule alarms that wake you up with fresh podcast episodes generated from your latest articles. Set your preferred time, pick your sources, and start every day informed. If you're the type of person that forgets to read what you bookmarked, add it to your alarm, it'll be in your next episode. Listen to Any Article Share any web article (if your within the paywall) to Iris and hear it read aloud with natural-sounding AI voices. Build a listening queue just like a podcast playlist. (eg. Yahoo News, NYT, WSJ Key Features - Turn any article into a podcast episode with AI voices - Automatic source discovery from your Gmail inbox - Scheduled alarms with personalized audio episodes - Share extension to listen to any web article - Background playback with full lock screen controls - Built-in player with queue management - Light and dark mode support Iris Pro Upgrade for unlimited episodes, premium AI voices, and multiple daily alarms. Privacy First Iris accesses your Gmail solely to identify sources you already follow. Your email content is never stored permanently or shared with third parties. All data is encrypted in transit and at rest. Terms of Use: https://joiniris.dev/terms Privacy Policy: https://joiniris.dev/privacy
Screenshots
Verdict
The clearest difference is rating: Iris at 5.0 against Castflow AI Podcast Transcript's 4.4. Iris also leads on update cadence (every 8 days vs every 3 weeks). Castflow AI Podcast Transcript's advantage is iOS requirement (18.0 vs 26.0). On price, review sentiment, ratings volume and ads 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
Both are free to download. Castflow AI Podcast Transcript sells 2 in-app purchases, starting at $3.99 per year and Iris sells 2 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.
Iris holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 7 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Castflow AI Podcast Transcript ships an update every 3 weeks, Iris every 8 days. The most recent releases landed on September 30, 2026 and October 15, 2026 respectively.
| Parameter | Castflow AI Podcast Transcript | Iris |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (7 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 7 — better | 4 |
| Update frequency | Every 3 weeks | Every 8 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, Mac — better | iPhone |
| Requires iOS | 18.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 62 MB | 62 MB |
| Age rating | 4+ | 4+ |
| Developer | 笛 姜 | Iris Audio LLC |
Customer experience
Castflow AI Podcast Transcript
Iris
In-app purchases
Castflow AI Podcast Transcript
- Annual Premium$3.991 Year
- Lifetime Premium$7.99
Iris
- Iris Pro - Monthly Subscription$8.991 Month
- Iris Pro - Yearly Subscription7 Days trial$59.991 Year









