Comparison

Calipers Tape Measure vs Foundry Control

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

Head to head
About

Calipers Tape Measure

Measure objects of any size with your phone. Features a 5-meter tape measure for larger items and a precision caliper mode for measuring small objects down to a tenth of a millimeter. Offers highly accurate readings tested across various devices and settings.

Highlights
  • 5-meter tape measure
  • Precision caliper mode
  • Measure to 0.1mm accuracy
  • Spirit level functionality
  • Accurate measurement testing
Read full description

Calipers lets you take measurements when you're on the go. For the big things, there's 5 meter tape measure. Simply place your iPhone on a surface so the ‘zero’ aligns with where you want to start your measurement. Next, place a finger near the bottom of your iPhone and slide your iPhone along the surface, keeping your finger still. Finally, when your finger reaches the top, repeat the process again until you’ve completed your measurement For the little things, the calipers mode will let you measure objects within a tenth of a millimeter. Simply place an object on the screen, and drag the top and bottom guides until they are just visible. To get really accurate readings, you can use the ‘plus’ and ‘minus’ buttons to move the guides closer or further apart by a 1/10th of a millimeter. 6 out of the top 10 free apps in this category are off by as much as 10% on the iPhone 12 & 13 Mini, or when some accessibility features are enabled. Since most people don't check their app against a ruler - we felt it was really important we did! This app has been throughly tested to ensure the measurements are accurate in every scenario.

About

Foundry Control

This app allows you to wirelessly control and fine-tune your subwoofer from your smartphone. Adjust core settings, access advanced tools like delay alignment and room EQ, and manage multiple presets for different listening experiences.

Highlights
  • Bluetooth subwoofer control
  • Delay alignment
  • Automatic Room EQ
  • Manual parametric EQ
  • Multiple presets
  • Multi-sub management
  • System diagnostics
Features
Read full description

About this app The PS Audio app makes it easy to control and fine-tune your Foundry F12 subwoofer from your iPhone—right from your listening seat. Connect over Bluetooth, select your subwoofer, and adjust core settings in seconds. When you’re ready to go deeper, the app unlocks advanced tools like delay alignment and room EQ, including automatic Room EQ for single-sub systems and manual parametric EQ for advanced users and multi-sub setups. Whether you’re dialing in a clean crossover blend, time-aligning multiple subs, or taming room peaks, the PS Audio app gives you intuitive control with clear, practical workflows. Key features Optimize your Foundry subwoofer system with: Power control (turn the subwoofer on/off) Level control (quick output adjustments from the couch) Low-pass filter (20–250 Hz) plus “Flat” bypass toggle to defeat the sub’s crossover Delay alignment (0–40 ms) for multi-sub timing and integration with main speakers Phase control (0–180° in 10° steps) Room EQ tools Automatic Room EQ (single-sub installations) Manual EQ with parametric filters (choose filter types, enter values, stack filters) Multiple presets (save EQ setups as one of 3 presets—for example, Music vs Movies) Multi-sub management (switch/connect to another Foundry subwoofer from inside the app) Wireless setup options via WiSA (connect using a Foundry Subwoofer Transmitter, sold separately) System info & diagnostics, including firmware version What you’ll need Bluetooth enabled on your iPhone/iPad Close proximity to the subwoofer to discover and connect Support Have questions, problems, or feedback? Please feel free to call us.

Screenshots

Calipers Tape Measure4 screens
Foundry Control3 screens

Verdict

The call

The clearest difference is price: Foundry Control at Free against Calipers Tape Measure's $1.99. Foundry Control also leads on rating (5.0 vs 4.3) and iOS requirement (12 vs 17.0). Calipers Tape Measure's advantage is ratings volume (26 vs 2). On ads, in-app purchases, monetization model 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

Foundry Control is free to download; Calipers Tape Measure costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Foundry Control holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Calipers Tape Measure has 26 ratings behind it against 2, so its average is the more settled of the two.

Scorecard4 real differences · 6 level
Calipers Tape Measure versus Foundry Control: the parameters behind the verdict, then further details
ParameterCalipers Tape MeasureFoundry Control
Price$1.99Free — better
Rating4.3 (26 ratings)5.0 (2 ratings) — better
Positive reviews77.8% of reviews—
Number of ratings26 — better2
Update frequencyEvery 3 months—
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.012 — better
Further details — not scored
Size6 MB17 MB
Age rating4+4+
DeveloperJacob ParkerPS Audio, Inc.

Customer experience

Calipers Tape Measure

All ratings26 ratings
Positive80.8%
Neutral3.8%
Negative15.4%
Written reviews18 reviews
Positive77.8%
Neutral5.6%
Negative16.7%

Foundry Control

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Calipers Tape Measure

No in-app purchases

None

Foundry Control

No in-app purchases

Questions

Is Calipers Tape Measure free?
Calipers Tape Measure costs $1.99, with no in-app purchases.
Is Foundry Control free?
Foundry Control is free to download, with no in-app purchases.
Which has better reviews, Calipers Tape Measure or Foundry Control?
Foundry Control is rated higher. Calipers Tape Measure averages 4.3 out of 5 from 26 ratings, while Foundry Control averages 5.0 from 2 ratings.
Do Calipers Tape Measure or Foundry Control have ads?
Neither Calipers Tape Measure nor Foundry Control shows ads.

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