Comparison

Theremin Synth vs Approvl

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

Head to head
About

Theremin Synth

Create unique soundscapes with this multitouch synthesizer. Record, loop, and overdub your creations, then export them as WAV files to share. Experiment with various waveforms and effects for endless sonic possibilities.

Highlights
  • Multitouch synthesis
  • Record, loop, and overdub
  • Adjustable delay, feedback, and scuzz effects
  • Four waveform options
  • Export recordings as WAV files
  • Offline functionality
Features
Read full description

This is a multitouch synth instrument. Play it by touching and swiping the screen, changing the waveforms and sliding the effects to create anything from traditional sci-fi theremin sounds to deep scuzzy soundscapes. Use the looper controls to record, loop and overdub layers. Then if you wish to save or share your recording, hit the download button to send your wav file to other compatible apps like Messages, Email, Dropbox etc. The original Theremin went live in 2014 on the web at femurdesign.com/theremin. Over a million hits later and hundreds of requests for a record button, I have redesigned it. Now the Theremin is ready for you to experiment with. Happy playing! -- SPECIFICATIONS -- • Record, loop and overdub options. • Multitouch allows up to 8 tones to be played simultaneously with your fingers • 3 sliders: delay, feedback and scuzz • 4 waveforms: sine, square, triangle and saw • No internet needed, works both online and offline • Download the loop as a .wav file • Loops can be shared with other apps like Mail, Message and more. • 1000+ installs • Compatible with iOS versions 8 - 10 • Optimized for iPhone, iPad & iPad Pro -- REVIEWS -- Gizmodo "Just mess around! Twiddle those faders! Swipe and click with reckless abandon! Turn the volume all the way up, give the dog a panic fit, and make your neighbours think the street's being invaded by giant cabbage people from planet Zok. Trust me, this will never get old.” Dangerous Minds “New online theremin simulator kind of sounds cooler than the real thing. Check it out and annoy your co-workers.” Mashable “Messing around with this virtual theremin is completely addicting” -- CONTACT -- To find out about my other musical app projects, please go to femurdesign.com and share your loops with me on Facebook and Twitter. Facebook: facebook.com/femurdesign Twitter: @femurdesign For any queries and support contact me here: femurdesign.com/support

About

Approvl

Read full description

Approvl is for music producers who want feedback and approval on songs and mixes from their artists, labels etc. Capturing written or verbal comments on the timeline allows the producer to fine tune the mix and ensure the client or label are happy with the end product. Doing this manually involves countless phone calls, emails and texts and Approvl makes this efficient and easy for both producer and artist. Mixes can be reviewed on Mac, iPad or iPhone also making it easy for mixes to approved on the road, in the van or wherever the artist is. Mixes can also be approved through a web link. Approvl is a paid monthly or annual subscription for producers but is free to approvers. Supplied according to standard Apple Terms of Use (EULA) found here: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Theremin Synth4 screens
Approvl4 screens

Verdict

The call

The clearest difference is price: Approvl at Free against Theremin Synth's $2.99. Theremin Synth's advantage is in-app purchases (none vs 2) and iOS requirement (12.1 vs 17.6). On 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

Approvl is free to download; Theremin Synth costs $2.99 up front. Approvl sells 2 in-app purchases, starting at $9.99 per month. Theremin Synth asks for nothing beyond the download.

Scorecard3 real differences · 7 level
Theremin Synth versus Approvl: the parameters behind the verdict, then further details
ParameterTheremin SynthApprovl
Price$2.99Free — better
Rating3.2 (6 ratings) — better—
Positive reviews63.6% of reviews—
Number of ratings6 — better—
Update frequencyEvery 2 months—
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS12.1 — better17.6
Further details — not scored
Size1 MB19 MB
Age rating4+4+
DeveloperLuke PhillipsIan Miller

In-app purchases

None

Theremin Synth

No in-app purchases

2 purchases

Approvl

Subscriptions2
  • Approvl Monthly subscription14 Days trial$9.991 Month
  • Approvl - Annual Subscription14 Days trial$99.991 Year

Questions

Is Theremin Synth free?
Theremin Synth costs $2.99, with no in-app purchases.
Is Approvl free?
Approvl is free to download, with in-app purchases available.
Do Theremin Synth or Approvl have ads?
Neither Theremin Synth nor Approvl shows ads.

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