Comparison

SoundPull vs SandFlow

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

Head to head
About

SoundPull

Features
Read full description

Pull the audio out of your videos — instantly, and entirely on your iPhone. SoundPull extracts the sound from videos you own and saves it as MP3, M4A (AAC) or WAV. Recorded a lecture, an interview, a rehearsal, or a voice memo as a video? Get just the audio in a couple of taps — no uploads, no watermark, no ads. WHY SOUNDPULL - Fully on-device. The conversion runs on the phone in your hand; there is no server behind SoundPull and nothing to sign in to. - Your choice of format. MP3, M4A (AAC) or WAV — whichever the app or device on the other end expects. - No watermark, no ads. The audio you get is just your audio. - Fast. Extraction runs locally using Apple's own media engine. - Trim before extracting. Take just the section you need instead of the whole recording. - Batch extraction. Queue several videos and let them run one after another. - Ringtones. Export a section as M4R and set it as your ringtone through GarageBand. - Transcription. Turn the speech in a recording into text, recognized on your iPhone — so it keeps working with no connection at all. - Silent video. Save the video itself with its audio track removed. - Pick the audio track, and even out recordings that came out too quiet. - Audio files, too. Convert M4A, MP3 and WAV recordings — voice memos included — to the format you need. - Merge. Join several videos or recordings into one audio file, in the order you choose. HOW IT WORKS 1. Pick a video from your photo library or Files — or send one to SoundPull from another app. 2. SoundPull pulls out the audio track on your device. 3. Listen to the result, then keep it in Files or hand it over to a different app. WHAT PEOPLE USE IT FOR - Lectures and classes filmed on a phone, turned into audio for the commute - Interviews and meetings kept as small audio files instead of large video - Music practice, rehearsals and live sets you recorded yourself - Voice memos you accidentally captured as video - Source material for a podcast or a video essay you are producing - Language study — listening back to your own recordings without watching WORKS WITH YOUR VIDEOS SoundPull reads the video formats your iPhone already understands, including MP4, MOV and M4V files recorded on your device, screen recordings, and clips received through AirDrop, Files or other apps. If a video carries an audio track and iOS can read it, SoundPull can pull the sound out of it. Videos with no audio track are detected before extraction starts and explained in plain language, so you are never left staring at a failure you cannot interpret. MADE FOR YOUR OWN CONTENT SoundPull is for audio from videos you created or have the right to use — your recordings, your projects. It does not work with DRM-protected content and never bypasses copy protection. ONE PURCHASE, THAT'S IT Buy SoundPull once and everything is unlocked — unlimited extractions, forever. No subscription, no ads, no upsells. PRIVATE BY DESIGN Lectures, interviews and meetings often contain things that were never meant to leave the room. SoundPull has no server to send them to: your recordings are decoded and converted on the iPhone itself, and the app collects nothing about you or the files you open. Turn your videos into audio you can actually use — with SoundPull.

About

SandFlow

Features
Read full description

SandFlow ist der Rechner für Horizontalspülbohrungen, gebaut von Leuten, die selbst am Gerät standen. Keine Tabellenkalkulation, kein Zettel im Bauwagen – die Zahlen, die du auf der Baustelle brauchst, in der Hand. VOLUMEN UND MENGEN Bohrlochvolumen, Ringraumvolumen, Verdrängung beim Rohreinzug. Spülungsbedarf je Gang, Bentonit- und Additivmengen, Verdämmvolumen. Anteile am Bohrkanal auf einen Blick. DRUCK UND STRÖMUNG Druckverlust im Gestänge, in den Düsen und im Ringraum. Düsendruck über bis zu vier Düsensätze. Ringraumgeschwindigkeit und Räumleistung. ZUGKRAFT UND ROHREINZUG Zugkraft nach ASTM und DCA, für das Einzelrohr und für das ganze Bündel. Beuldruck. Rohre anordnen, Umschlingung legen, nötigen Bohrdurchmesser ablesen. BOHRUNGSPLANUNG Bohrlinienplaner mit Ein- und Austritt, Radien, Zwangspunkten und Gelände. Statische Tiefe und Überdeckung. Plan dein Projekt führt dich vom Pilot über die einzelnen Räumgänge bis zum Einzug. SPÜLUNGSTECHNIK Spülungsprotokoll mit Marsh-Zeit, Dichte, Sandgehalt, pH und Filtrat. Rheologie mit Fließkurven und Kennwerten. Feststoffgehalt und Aufladung der Rückflussspülung. Anmachwasser bewerten. BODEN UND FELS Bodenarten mit Signaturen, Felskennwerte, Tafelwerk zum Nachschlagen. Geofinder für die geologische Einordnung. AUSDRUCKE ALS TECHNISCHER BELEG Jedes Blatt zeigt die Eingaben, die angesetzten Faktoren, die Methode, die Zwischenwerte und die Ergebnisse mit Einheiten. Zeichnungen sind bemaßt. Damit hältst du nicht nur ein Ergebnis in der Hand, sondern kannst zeigen, wie es zustande kam – gegenüber dem Auftraggeber, dem Prüfer oder im Streitfall. AUF DER BAUSTELLE Rechnet ohne Netz. Große Knöpfe, ablesbare Zahlen, keine verschachtelten Menüs. Metrisch und imperial. Acht Sprachen: Deutsch, Englisch, Polnisch, Russisch, Ukrainisch, Spanisch, Französisch, Ungarisch. WICHTIGER HINWEIS Alle Werte sind Planungswerte und vor der Verwendung auf Plausibilität zu prüfen. Die Verantwortung für die Ausführung bleibt beim Anwender. SandFlow GmbH, Schwerin

Screenshots

SoundPull4 screens
SandFlow4 screens

Verdict

The call

The clearest difference is price: SandFlow at Free against SoundPull's $1.99. SandFlow also leads on in-app purchases (none vs 1). SoundPull's advantage is iOS requirement (16.4 vs 26.0). On update cadence, 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

SandFlow is free to download; SoundPull costs $1.99 up front. SoundPull sells 1 one-off in-app purchase. SandFlow asks for nothing beyond the download.

UpkeepUpdate frequency

SoundPull ships an update every 10 days, SandFlow daily. The most recent releases landed on October 11, 2026 and October 2, 2026 respectively.

Scorecard3 real differences · 3 level
SoundPull versus SandFlow: the parameters behind the verdict, then further details
ParameterSoundPullSandFlow
Price$1.99Free — better
Update frequencyEvery 10 daysDaily — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhoneiPhone, iPad — better
Requires iOS16.4 — better26.0
Further details — not scored
Size35 MB40 MB
Age rating4+4+
DeveloperKohei OmoriRobert Sandig

In-app purchases

1 purchases

SoundPull

One-time1
  • Unlimited Extractions$2.99
None

SandFlow

No in-app purchases

Questions

Is SoundPull free?
SoundPull costs $1.99, and also offers in-app purchases.
Is SandFlow free?
SandFlow is free to download, with no in-app purchases.
Do SoundPull or SandFlow have ads?
Neither SoundPull nor SandFlow shows ads.
Which is updated more often, SoundPull or SandFlow?
SoundPull ships an update every 10 days, and SandFlow daily. Most recently, SoundPull was updated on October 11, 2026 and SandFlow on October 2, 2026.

Other comparisons