SyncFlowBoard vs PenlaSync
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
SyncFlowBoard
Read full descriptionHide full description
SyncFlow is a local, real-time shared communication app designed specifically for stage crews, live event production, PA engineers, and lighting operators. By connecting devices locally, SyncFlow enables instant text announcements and hand-drawn diagrams between backstage, front-of-house (FOH), and the stage. No internet requiredβkeep your team perfectly coordinated even in deep basements or remote venues. β Key Features β β’ Instant Shared Canvas Draw, write, and map out stage layouts with up to 8 devices simultaneously. Your drawings sync in real time with ultra-low latency. Perfect for conveying visual information (like mic placements, staging modifications, or quick cues) without speaking. β’ Full-Screen Message Board Need to display the current schedule or critical alerts? Instantly toggle a full-screen, high-contrast Message Board. Put up notices like "18:00 OPEN" or "CLOSE" with custom fonts, colors, a built-in real-time clock, and a vibrant Neon mode for maximum visibility in dark backstage areas. β’ Professional Power Saving Designed to survive grueling rehearsals and long live shows. When the Message Board is closed, background clock updates and neon animations are suspended 100% (Eco-Sleep mode). This prevents iPad overheating and drastically reduces battery drain. β’ Robust Offline Sync Running on Appleβs secure local networking, SyncFlow works completely offline. Simply connect both iPads to the same local Wi-Fi router. Experience rock-solid, low-latency synchronization across 100+ meters, free from the packet congestion of busy venue networks. β’ Smart Display Names Bypass standard system name limitations. Customize your display name so other devices can instantly recognize who sent a drawing or who is currently online in the connection logs. Elevate your backstage communication. Run your next show seamlessly with SyncFlow.
PenlaSync
Read full descriptionHide full description
Your iPhone is about to become the brightest thing at the concert. Right after your favorite artist. PenlaSync turns your phone into a powerful, BPM-synced penlight for concerts, live events, and fan meetups. No forgotten glow sticks. No wrong colors. Just pure, perfectly timed light for the artist you love. --- WHY FANS LOVE PENLASYNC --- BEAT-SYNCED FLASH PATTERNS Set your BPM and choose from 4 light modes: Solid, Flash, Fade, and Strobe. Your light pulses with the music, creating that stadium-wide wave of color that gives everyone chills. 8 QUICK COLORS + CUSTOM PICKER Tap to switch between 8 preset colors instantly. Need your bias's exact member color? The custom color picker lets you match it down to the pixel. SAVE COLOR PRESETS Create and save color profiles for different artists, groups, or songs. When the setlist changes, you're ready in a single tap. BRIGHTNESS CONTROL Dial it down during the MC segment. Crank it up for the encore. You're in full control of your light, your way. --- PERFECT FOR --- - K-pop concerts and fan events - J-pop and idol live shows - Music festivals and arena tours - Fan meetups and viewing parties - Theater, musicals, and stage events - Anyone who forgot their glow stick at home --- THE CONCERT EXPERIENCE YOU DESERVE --- There's nothing like being part of a sea of light, thousands of fans moving together in perfect rhythm for the artist they love. PenlaSync puts that power in your pocket. No batteries to replace. No bulky gear to carry. Just open the app, pick your color, set your BPM, and light up the night. Your light. Their stage. One unforgettable moment.
Screenshots
Verdict
The clearest difference is ads: SyncFlowBoard at none against PenlaSync's shown. SyncFlowBoard also leads on update cadence (every 3 days vs fortnightly). On price, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
SyncFlowBoard ships an update every 3 days, PenlaSync fortnightly. The most recent releases landed on October 10, 2026 and October 28, 2026 respectively.
| Parameter | SyncFlowBoard | PenlaSync |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days β better | Fortnightly |
| Ads | No β better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad β better | iPhone |
| Requires iOS | 17.6 | 17.0 β better |
| Further details β not scored | ||
| Size | 5 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | SUGAR SOUND, K.K. | BYNET |
In-app purchases
SyncFlowBoard
No in-app purchases
PenlaSync
No in-app purchases









