# Srvy vs HPLC Calculator

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.

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.

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

## The numbers

| Metric | Srvy | HPLC Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/srvy/id1549617779/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 5 weeks |
| Monetization | Free | — |
| Size | 88 MB | 66 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Callvita LLC](https://appshunter.io/developer/1491952450) | [Youhana Mehany](https://appshunter.io/developer/1600330996) |

## What reviewers say

### Srvy

[App page](https://appshunter.io/ios/app/srvy/id1549617779)

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:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### HPLC Calculator

[App page](https://appshunter.io/ios/app/hplc-calculator/id1600330994)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.59 | per month |
| Remove Ads | $4.99 | per year |
| 50K Token Top-Up | $2.99 | one-time |
| 100K Token Top-Up | $4.99 | one-time |
| 250K Token Top-Up | $9.99 | one-time |
| 500K Token Top-Up | $12.99 | one-time |


## Frequently asked 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.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*