Cresc Flow vs PO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cresc Flow
This app transforms music practice into a rewarding experience through gamified tracking and analytics. It helps users set goals, visualize progress, and unlock historical composers while offering a metronome and tuner.
- Gamified session tracking
- Unlockable historical composers
- Built-in metronome and tuner
- Progress analytics
- Repertoire management
- Audio recording and notes
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Music practice is hard. Cresc Flow makes showing up feel worth it. Cresc Flow is a beautifully crafted music practice tracker that elegantly gamifies your daily routine. No more dry logs or mindless repetition. Cresc Flow turns your journey into a rewarding, collection-driven experience. Track every session, set smart goals, visualize your progress with deep analytics, and stay sharp with a built-in metronome and tuner. As you log your hours, you’ll unlock 54 historical composers, build a unique connection with them, and pick up genuine music knowledge along the way. Every minute of practice moves you forward! GOAL-DRIVEN SESSION TRACKING - Track by Goal: Tie every session to a specific goal so you always play with a purpose. - Countdown or Stopwatch: A countdown for time-boxed sessions, or the stopwatch for open-ended runs. - Actionable Sub-Tasks: Break complex pieces into bite-sized sub-tasks you can check off as you go. - Session Freedom: Edit or manually log any session anytime to keep your history clean. - Rate, Record & Reflect: Grade your performance 1 to 5 stars, record audio, and add structured notes, all tied to the session. UNLOCK 54 HISTORICAL COMPOSERS - Earn Reference Letters: Start with Bach, Mozart, and Beethoven. Practice consistently to earn letters and unlock more famous composers. - Grow Your Affinity: Practicing raises your Affinity with composers. It only ever goes up. Zero decay, zero guilt. - Post-Session Inspiration: Composers occasionally appear at the end of your sessions with a word of wisdom, unique inspiration, or a creative spark. - Personalized Hub: Favorite composers, add custom tags, view historical timelines, and link external music, videos, or texts to track your learning. FREE METRONOME & TUNER - Precise Metronome: Steady beats with adjustable BPM, time signatures, and traditional tempo terms from Largo to Presto. - Microphone Tuner: Highly responsive tuning with a flexible reference pitch from 430 Hz to 450 Hz. - Reference Drone: Hold a steady reference tone hands-free, so you can tune or play along. - Quick Presets: Save custom note presets to tune your instrument in seconds. ALL-IN-ONE PRACTICE TOOLS - Repertoire: Build a library of the pieces you’re learning, each with a status. Search the IMSLP catalog for scores, or add your own PDFs to read full-screen. - Recorder & Notes: Record audio with scrubbable waveforms, standalone or attached to sessions. Write notes in grid or list layouts. - Practice Compass (Strategy & Ideas): Map out your session before you play. Pick the facets and moves for the day so you always know how to tackle hard passages. - Chords Lib: Explore chords in any key and scale, hear each as a block or arpeggio, and see its tension on a piano. - Music Glossary: A searchable dictionary of terms, filterable by category and difficulty. Track mastery across languages. SEE YOUR PROGRESS VISUALLY - Running Totals: Keep score of your all-time sessions, time, recordings, and notes. - Heat Maps: See your practice intensity at a glance with an interactive calendar heat map. - Comprehensive Charts: Clean bar charts for total practice time and rating trends by day, month, or year, plus a detailed pie chart breaking down sessions by goal. FREE PLAN - Full access to the built-in Metronome, Tuner, Audio Recorder, Notes, and Practice Compass. - Track up to 20 sessions and 1 active goal. - Unlock up to 2 historical composers. - 7 days of full statistics history. PREMIUM PLAN - Unlimited Everything: Unlimited composers, goals, and session tracking. - Full History: 30-day, 12-month, and custom-range analytics. - Cloud Sync: Seamless cloud synchronization across all your iOS devices. - Cloud Storage: 10 GB of secure recording storage. Monthly or yearly subscriptions. Bring clarity to your routine and history’s masters to your side. Download Cresc Flow and start your first session today! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
PO
Design and edit drum sounds, kits, and patterns for Teenage Engineering's PO-32 Tonic. Transfer your creations to the device via audio. Back up and edit existing sounds, and import/export patches from Microtonic.
- Shape 16 sounds with 21 synth parameters
- Program 16-step patterns with accents
- Send kits, sounds, or patterns via audio
- Back up and decode PO-32 data dumps
- Import/export Microtonic patches
- Local library with tags and favorites
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PO-PatchStudio designs drum sounds, kits and patterns for Teenage Engineering's PO-32 Tonic, then sends them to your Pocket Operator over sound. Free, with no ads and no account. The PO-32 has no USB data connection. It loads new sounds the way an old modem does, by listening through its microphone. So this app does the fiddly part on a proper screen: build a kit, hold your phone next to the PO-32 and press play. WHAT YOU CAN DO - Shape all 16 sounds with the full set of 21 synth parameters, plus both ends of the morph - Program 16-step patterns on the pads, with accents, and hear them before you send - Send a whole kit, a single sound or a pattern to the PO-32 over audio - Back up your PO-32: record its data dump through the microphone and the app decodes it into a kit you can edit - Import Microtonic .mtdrum and .mtpreset patches, including files from older versions of Microtonic, and export your sounds back out - Keep kits, sounds and patterns in a local library with tags and favourites WORKS WITH - PO-32 Tonic - Also sends drum sounds to the PO-35 Speak's built-in Tonic channel HOW TRANSFER WORKS Put the PO-32 in receive mode (press acc + sound), turn your phone's volume up and play the transfer into the PO-32's mic. To back up, start recording in the app, then hold write and press sound on the PO-32. Previews come from an open-source recreation of the PO-32's synth, so they sound close to the hardware but not identical. Once a sound is on the PO-32, it plays through the device's own engine. A NOTE FROM ME I'm a solo developer and a PO-32 owner. PO-PatchStudio stands on the open-source libpo32 library by Eric Lewis and years of reverse-engineering by the Pocket Operator community, which is why it's free. If something is missing or broken, tell me. Not affiliated with or endorsed by Teenage Engineering AB or NuEdge Development AB. Pocket Operator, PO-32 and Tonic are trademarks of Teenage Engineering AB. Microtonic is a trademark of NuEdge Development AB.
Screenshots
Verdict
The clearest difference is rating: PO at 5.0 against Cresc Flow's 3.7. PO also leads on in-app purchases (none vs 4) and update cadence (every 2 days vs weekly). Cresc Flow's advantage is ratings volume (3 vs 1). On price 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. Cresc Flow sells 4 in-app purchases, starting at $7.99 per month. PO asks for nothing beyond the download.
PO holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively.
Cresc Flow ships an update weekly, PO every 2 days. The most recent releases landed on October 1, 2026 and October 11, 2026 respectively.
| Parameter | Cresc Flow | PO |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 3 — better | 1 |
| Update frequency | Weekly | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 86 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Tiny Cresc Interactive Inc. | Photon Consulting Limited |
Customer experience
Cresc Flow
PO
In-app purchases
Cresc Flow
- Monthly Premium7 Days trial$7.991 Month
- Yearly Premium7 Days trial$59.991 Year
- 1 Reference Letter$1.99
- Full Composer Pass$39.99
PO
No in-app purchases









