Comparison

OptimalHR vs HOU Express

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

Head to head

OptimalHR

Employee Self-Service App

About

OptimalHR

Read full description

OptimalHR lets employees clock in/out, request time off, resolve attendance issues, and submit resignations. Line managers can view team statuses, track attendance in real time, and review or approve requests.

About

HOU Express

Features

Read full description

Welcome to HOU EXPRESS! This Privacy Statement, we are going to operate and collect our customer’s information by using our delivery system. We understand that providing information online involves a great deal of trust on your part. We take this trust very seriously and make it a high priority to ensure the security and confidentiality of the personal information you provide us when you install our App (HOU EXPRESS). Before providing us with your personal information, please read this Privacy Statement carefully to learn about our privacy practices.

Screenshots

OptimalHR4 screens

HOU Express4 screens

Verdict

The call

The clearest difference is iOS requirement: HOU Express at 12.0 against OptimalHR's 15.6. On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 30, 2026 and October 1, 2026 respectively.

Scorecard1 real difference · 5 level

OptimalHR versus HOU Express: the parameters behind the verdict, then further details
Parameter	OptimalHR	HOU Express
Price	Free	Free
Update frequency	Every 3 weeks	Every 3 weeks
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPod	iPhone, iPad, iPod — better
Requires iOS	15.6	12.0 — better
Further details — not scored
Size	43 MB	105 MB
Age rating	4+	4+
Developer	DIGITAL CONTENTS CREATOR CO., LTD.	Vectorasoft Co., Ltd.

In-app purchases

None

OptimalHR

No in-app purchases

None

HOU Express

No in-app purchases

Questions

Is OptimalHR free?

OptimalHR is free to download, with no in-app purchases.

Is HOU Express free?

HOU Express is free to download, with no in-app purchases.

Do OptimalHR or HOU Express have ads?

Neither OptimalHR nor HOU Express shows ads.

Which is updated more often, OptimalHR or HOU Express?

OptimalHR ships an update every 3 weeks, and HOU Express every 3 weeks. Most recently, OptimalHR was updated on September 30, 2026 and HOU Express on October 1, 2026.