Paychex Flex vs IW Local 37
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Paychex Flex
This app connects employers and employees to essential payroll and benefits functions. Employers can submit payroll, access reports, and view employee data. Employees can view pay stubs, manage retirement contributions, and access benefit details.
- Submit payroll on the go
- Access payroll reports
- View employee pay stubs and tax documents
- Manage retirement contributions and investments
- Access health and benefits information
- Touch ID and Face ID authentication
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The Paychex Flex app can be used by previously registered Paychex Flex (paychexflex.com) users. Paychex Flex keeps employers and employees connected to the most vital payroll and benefits features. Available features will vary and are dependent upon your company's plan options. EMPLOYERS Touch ID and Face ID authentication Submit payroll - Enter, review, and submit on the go. - Resume payrolls started on your tablet or desktop. Access vital information - All reports, including payroll reports and cash requirements. - Employee check stubs and tax documents. - Employee profiles, compensation, taxes, deductions, and time-off balances. - Retirement plan balances, participation rates, and employee eligibility. - Health and benefits carrier information and member guides. - Health and benefits employee enrollment and election information. EMPLOYEES Touch ID and Face ID authentication Access vital information - Check stubs and W2s. - Retirement balances, contributions, returns, and loans. - Update retirement contributions and investments. - Profile, compensation, taxes, deductions, and time-off balances. - Health, dental, and life insurance benefit details, deductions, and contact information. - FSA contributions, balances, claim, and reimbursement activity.
IW Local 37
Stay informed about your union membership with important updates and notifications. Access organizing materials, make online dues payments, and view the latest social media posts from your local chapter.
- Push notifications for updates
- Organizing material access
- Online dues payments
- Social media feed integration
- Membership information
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Stay current on all vital information regarding your union membership by downloading Ironworkers Local 37's mobile app today. Start receiving push notifications that alert you of important updates. Visit the app often for new organizing material, to make online dues payments, or to view Local 37's latest social media posts!
Screenshots
Verdict
The clearest difference is ratings volume: Paychex Flex at 577K against IW Local 37's 7. Paychex Flex also leads on update cadence (monthly vs every 4 months) and chart position (#42 vs unranked). IW Local 37's advantage is iOS requirement (12.0 vs 17.4). On price, rating, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.8 for Paychex Flex against 4.7 for IW Local 37. That said, the two scores are not equally well evidenced: Paychex Flex has 577K ratings behind it against 7, so its average is the more settled of the two.
Paychex Flex ships an update monthly, IW Local 37 every 4 months. The most recent releases landed on November 3, 2026 and October 29, 2026 respectively.
| Parameter | Paychex Flex | IW Local 37 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (577K ratings) — better | 4.7 (7 ratings) |
| Positive reviews | 12.2% of reviews | — |
| Number of ratings | 577K — better | 7 |
| Update frequency | Monthly — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Best chart rank | #42 — better | — |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 17.4 | 12.0 — better |
| Further details — not scored | ||
| Size | 330 MB | 128 MB |
| Age rating | 12+ | 17+ |
| Developer | Paychex, Inc | Local 37 Iron Workers |
Customer experience
Paychex Flex
IW Local 37
Bugs and requests
Paychex Flex
Reported bugs
3 issues- Login screen freezes or fails to load
- Time tracking inaccuracies and missed punches
- Inconsistent app behavior across devices
Requested features
3 requests- Ability to edit time punches directly in the app
- More detailed payroll information and reporting
- Improved notification system for payroll updates
IW Local 37
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Paychex Flex
No in-app purchases
IW Local 37
No in-app purchases
