Comparison

CALIPER App vs SPIRO

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

Head to head
About

CALIPER App

This app helps healthcare professionals and parents compare a child's lab test results against a comprehensive, up-to-date database of normal values. It simplifies the assessment of pediatric laboratory data, aiding in the identification of potential health concerns and treatment adjustments.

Highlights
  • Pediatric lab test comparison
  • Up-to-date reference value database
  • Supports over 100 routine tests
  • User-friendly interface
  • Portable on-the-go tool
  • Validated and published data
Read full description

The CALIPER App has been developed for paediatricians, family physicians, other healthcare workers, as well as parents worldwide. It is a user friendly and easy tool to assess a child’s laboratory test results using the latest reference value database developed based on values in healthy children and adolescents. Quickly and easily compare individual laboratory test results to a database of normal values (reference intervals) covering more than 100 tests routinely performed to assess children with various medical concerns. The CALIPER database has been validated and published in international medical journals and accepted worldwide as the most up to date reference resource available anywhere. Reference intervals represent the range of values that healthy, normal individuals are expected to display for various laboratory tests. When a patient’s results fall outside of this expected range, this alerts physicians and laboratory professionals to the need for follow-up testing and can signal that changes to treatment or monitoring are required. The reference intervals included in this application were determined as part of the Canadian Laboratory Initiative for Pediatric Reference Intervals (CALIPER) at the Hospital for Sick Children, an ongoing nation-wide study of normal values in paediatric lab results. Until recently, only outdated or inaccurate values were available for many paediatric lab tests. CALIPER provides reference intervals that reflect the influence of the rapid developmental and hormonal changes occurring during childhood. All reference intervals reported here were developed using the most up-to-date laboratory testing equipment available from Abbott Diagnostics. To use the app, simply select the test of interest, enter an individual’s results, and select their sex and age from the drop-down menu. An output will display how these results relate to CALIPER reference database, allowing for efficient and easy comparison. With your phone at hand, you will never be without this simple, portable tool for evaluating lab tests results on the go. For a complete list of tests available as part of this application, or for additional support, please visit the CALIPER website.

About

SPIRO

This medical app assists healthcare professionals and students in interpreting spirometry tests. It provides diagnostic and treatment suggestions based on entered data and offers access to educational materials and respiratory health guidelines.

Highlights
  • Interpret spirometry tests
  • Diagnostic suggestions
  • Treatment suggestions
  • Access respiratory guidelines
  • Educational material
  • Patient follow-up tool
Read full description

Objective measurement of respiratory function is of primary importance in the assessment of chronic obstructive pulmonary diseases. However, the interpretation of respiratory function tests, especially spirometry tests, is considered suboptimal in primary care. A team from the Quebec Heart and Lung Institute affiliated with Laval University (IUCPQ-UL) developed an interactive mobile application called SPIRO© to facilitate the interpretation of spirometry tests. The SPIRO© app guides healthcare professionals and medical students in interpreting spirometry tests by entering basic data from a spirometry report (FEV1, FVC, FEV1/FVC). The software gives a diagnostic suggestion to the user based on pre-set intervals. In addition to being a resource for educational material (explanatory video, questionnaires, documents related to respiratory health guidelines), the SPIRO© application guides the user in applying the guidelines in respiratory health by providing the necessary references (scientific articles, respiratory health guidelines) to develop a treatment plan. The app allows: - Optimizing interpretation of spirometry; - Obtaining a diagnostic suggestion; - Obtaining a treatment suggestion according to respiratory guidelines; - Getting quick access to respiratory health guidelines; - Facilitating the work of health professionals; - Carrying out better follow-up of patients with chronic obstructive pulmonary disease (COPD) or asthma; - Obtaining continuing education through specific and relevant educational material. This tool was developed by the Chair in Knowledge Translation, Education and Prevention in Respiratory and Cardiovascular Health affiliated with Laval University in collaboration with the IUCPQ-UL.

Screenshots

CALIPER App4 screens
SPIRO4 screens

Verdict

The call

The clearest difference is review sentiment: CALIPER App at 100% against SPIRO's 0%. CALIPER App also leads on price (Free vs $3.99). SPIRO's advantage is update cadence (every 7 months vs every 16 months). On ads, in-app purchases, device support and iOS requirement 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

CALIPER App is free to download; SPIRO costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

CALIPER App ships an update every 16 months, SPIRO every 7 months. The most recent releases landed on September 10, 2026 and July 9, 2026 respectively.

Scorecard4 real differences · 6 level
CALIPER App versus SPIRO: the parameters behind the verdict, then further details
ParameterCALIPER AppSPIRO
PriceFree — better$3.99
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings1 — better—
Update frequencyEvery 16 monthsEvery 7 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size26 MB125 MB
Age rating4+12+
DeveloperThe Hospital for Sick ChildrenUniversite Laval

Customer experience

CALIPER App

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

SPIRO

Written reviews9 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

CALIPER App

No in-app purchases

None

SPIRO

No in-app purchases

Questions

Is CALIPER App free?
CALIPER App is free to download, with no in-app purchases.
Is SPIRO free?
SPIRO costs $3.99, with no in-app purchases.
Do CALIPER App or SPIRO have ads?
Neither CALIPER App nor SPIRO shows ads.
Which is updated more often, CALIPER App or SPIRO?
CALIPER App ships an update every 16 months, and SPIRO every 7 months. Most recently, CALIPER App was updated on September 10, 2026 and SPIRO on July 9, 2026.

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