Standard Deviation vs Dial In
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Standard Deviation
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SD calculator is an iOS application developed for the calculation of standard deviation problems. It includes entering data values and selecting the type of standard deviation i.e. sample or population. Features of standard deviation calculator Design The design of this application is unique and its style and theme are attractive. This app is designed to top all the other apps out there in the design department. Input field The input field is easy to use to enter data and get the result. Simply, add the comma-separated values and choose the type of standard deviation. Multiple options There are multiple options available in this application as you can get the mean, sample standard deviation, population standard deviation, deviation (difference of data values from the mean), square of deviation, sample variance, and population variance. Results The step-by-step solution will be provided just after hitting the calculate button for the sample and population data. This will help you to ease up the lengthy and time-consuming calculation in a fraction of a second. How to use a standard deviation calculator? This application is easy to use, but just in case you need a guide, here it is. • First of all, enter the comma-separated values into the input box. • Select the type of the standard deviation i.e. sample or population. • Press the calculate button. • The step-by-step result will show just after pressing the calculate button • Hit the reset button to enter new data.
Dial In
This app overlays a calibrated reticle onto your phone's camera feed, providing a precise aiming reference for long-range shooting, hunting, and observation. It allows users to match the reticle to their specific optics for accurate holdovers and windage calls.
- Live camera feed with reticle overlay
- MOA and MRAD reticle options
- Optic calibration tool
- Magnification scaling
- Customizable reticle colors/styles
- Photo/video capture with reticle
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Dial In transforms your phone into a professional digiscoping tool with a live reticle overlay directly on your camera feed. Whether you're calling shots at a PRS match, hunting in the backcountry, spotting for a buddy, or running field observations, Dial In gives you the precision reference you need — right on your screen. Gone are the days of guessing holdovers through a spotting scope with no reference. Dial In lets you calibrate a precision MOA or MRAD reticle overlay to your exact optic setup, so what you see on screen matches what's downrange. Features: Live camera feed with real-time reticle overlay MOA and MRAD reticle options Calibration tool matched to your specific optic and magnification Magnification slider for accurate scaling Multiple reticle colors and center styles Capture photos and videos with the reticle burned in for documentation and after-action review Clean, simple interface built for field use Perfect for: PRS and long range competition shooters Hunters calling shots and reading wind Spotters supporting precision rifle teams Military and law enforcement observation Wildlife and nature observers Dial In. See more. Miss less.
Screenshots
Verdict
The clearest difference is price: Standard Deviation at Free against Dial In's $9.99. Standard Deviation also leads on iOS requirement (13.0 vs 15.0). Dial In's advantage is rating (5.0 vs 1.0) and update cadence (every 2 days vs every 2 months). On ads, in-app purchases 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
Standard Deviation is free to download; Dial In costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Dial In holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively.
Standard Deviation ships an update every 2 months, Dial In every 2 days. The most recent releases landed on October 24, 2026 and October 14, 2026 respectively.
| Parameter | Standard Deviation | Dial In |
|---|---|---|
| Price | Free — better | $9.99 |
| Rating | 1.0 (1 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 3 — better |
| Update frequency | Every 2 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Best chart rank | — | #159 — better |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 21 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Ahmad Sattar | Charley Wingerd |
In-app purchases
Standard Deviation
No in-app purchases
Dial In
No in-app purchases
Questions
Is Standard Deviation free?
Is Dial In free?
Which has better reviews, Standard Deviation or Dial In?
Do Standard Deviation or Dial In have ads?
Which is updated more often, Standard Deviation or Dial In?
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