Comparison

Srvy vs HPLC Calculator

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

Head to head
About

Srvy

Order custom pizzas from your favorite local pizzerias with ease and affordability. This app connects you directly to restaurants, ensuring lower prices by eliminating third-party fees. Customize every aspect of your pizza and enjoy it your way.

Highlights
  • Custom pizza ordering
  • Direct restaurant connection
  • Lower prices via no restaurant fees
  • Topping and extra customization
  • Budget-friendly ordering
Features
Read full description

Your Pizza, Your Way — Faster and Cheaper with Srvy® Srvy® offers a seamless, fast, and budget-friendly way to order from your favourite pizza places. By not charging restaurants fees, we ensure lower prices and better value for you. With Srvy®, customize your pizza exactly how you like it—choose toppings and extras. Enjoy pizza your way at the best price. Get the perfect pizza at the perfect price—Srvy® makes it easy and affordable!

About

HPLC Calculator

Features
Read full description

This app is a powerful tool designed for R&D and QC departments, helping streamline essential lab and HPLC calculations. Ask questions and troubleshoot chromatography challenges Share knowledge and best practices Discuss methods, instrumentation, and real-world lab scenarios Connect with scientists, students, and professionals globally It supports: System Suitability Calculations for HPLC Buffer Preparation and pH Adjustments Linearity and Regression Analysis General Reagent and Solution Calculations In addition, the Chromatography Forum built into the app offers a collaborative space to: Ask questions and troubleshoot chromatography challenges Share knowledge and best practices Discuss methods, instrumentation, and real-world lab scenarios Connect with scientists, students, and professionals globally Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Srvy4 screens
HPLC Calculator4 screens

Verdict

The call

The clearest difference is in-app purchases: Srvy at none against HPLC Calculator's 6. Srvy also leads on ads (none vs shown) and update cadence (weekly vs every 5 weeks). On price, 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

Both are free to download. HPLC Calculator sells 6 in-app purchases, starting at $0.59 per month. Srvy asks for nothing beyond the download.

UpkeepUpdate frequency

Srvy ships an update weekly, HPLC Calculator every 5 weeks. The most recent releases landed on October 13, 2026 and October 19, 2026 respectively.

Scorecard3 real differences · 7 level
Srvy versus HPLC Calculator: the parameters behind the verdict, then further details
ParameterSrvyHPLC Calculator
PriceFreeFree
Rating5.0 (6 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings6 — better—
Update frequencyWeekly — betterEvery 5 weeks
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size88 MB66 MB
Age rating4+4+
DeveloperCallvita LLCYouhana Mehany

In-app purchases

None

Srvy

No in-app purchases

6 purchases

HPLC Calculator

Subscriptions2
  • Remove Ads$0.591 Month
  • Remove Ads$4.991 Year
One-time4
  • 50K Token Top-Up$2.99
  • 100K Token Top-Up$4.99
  • 250K Token Top-Up$9.99
Show 1 more
  • 500K Token Top-Up$12.99

Questions

Is Srvy free?
Srvy is free to download, with no in-app purchases.
Is HPLC Calculator free?
HPLC Calculator is free to download, with in-app purchases available.
Do Srvy or HPLC Calculator have ads?
HPLC Calculator shows ads; Srvy does not.
Which is updated more often, Srvy or HPLC Calculator?
Srvy ships an update weekly, and HPLC Calculator every 5 weeks. Most recently, Srvy was updated on October 13, 2026 and HPLC Calculator on October 19, 2026.

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