Comparison

Lessen PM vs FAST Field Service

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

Head to head
About

Lessen PM

This app helps field project managers oversee their projects with real-time updates. It provides the latest tools and features to ensure projects are delivered on time and within budget.

Highlights
  • Project management
  • Real-time updates
  • On-time delivery tracking
  • Budget management
  • Field team tools
Features
Read full description

The Lessen PM application empowers Lessen Field Project Managers to successfully manage their assigned projects with the latest tools and features.  Field Project Managers will be able to manage their projects to ensure real-time updates driving on-time and on-budget delivery.

About

FAST Field Service

This app helps businesses dispatch and collect reports for critical operations, capturing time, signatures, and validating data. It integrates with accounting software and offers customizable forms for efficient data collection and reporting.

Highlights
  • Dispatch and collect reports
  • Capture time and signatures
  • Data validation
  • API integration with other systems
  • Customizable forms
  • Web-based report access
  • Searchable data export
Features
Read full description

FAST (Field and Service Timekeeping) is a reporting application that allows organizations to dispatch and collect reports for critical business operations. The data collected can then be used to process other operations. FAST will also collect time, signatures, validate data and make that available to your accounting software. Rather than setup projects, clients, rates, employees, and other information you already have, FAST has a full API to collect this information from other systems. This reduces setup and accounting issues. The software is fully customizable and can be used across several operational types and industries. We believe we started with the most complicated task and created easily understandable user input and organized useful outputs. As a client you can provide us your forms, or we can recommend a template for you. We will then provide access to both the reports and a website with all the information collected on the reports in an excel type searchable format. No longer do you have to look at reports to see your information across multiple projects, clients, employees, dates, and types. As a client we also give you full control of what to make required on a form to make sure your employees/contractors collect all the information you need.

Screenshots

FAST Field Service4 screens

Verdict

The call

The clearest difference is rating: Lessen PM at 5.0 against FAST Field Service's 4.0. Lessen PM also leads on iOS requirement (13.0 vs 15.6). FAST Field Service's advantage is device support (3 vs 1). On price, review sentiment, ratings volume and update cadence 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.

ReceptionRating · Positive reviews · Number of ratings

Lessen PM holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 6 and 6 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Lessen PM ships an update every 6 weeks, FAST Field Service every 5 weeks. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

Scorecard3 real differences · 7 level
Lessen PM versus FAST Field Service: the parameters behind the verdict, then further details
ParameterLessen PMFAST Field Service
PriceFreeFree
Rating5.0 (6 ratings) — better4.0 (6 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings66
Update frequencyEvery 6 weeksEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPadiPhone, iPad, iPod — better
Requires iOS13.0 — better15.6
Further details — not scored
Size73 MB92 MB
Age rating4+4+
DeveloperSMS Assist, LLC.Jason Primrose

Customer experience

Lessen PM

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

FAST Field Service

All ratings6 ratings
Positive66.7%
Neutral16.7%
Negative16.7%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Lessen PM

No in-app purchases

None

FAST Field Service

No in-app purchases

Questions

Is Lessen PM free?
Lessen PM is free to download, with no in-app purchases.
Is FAST Field Service free?
FAST Field Service is free to download, with no in-app purchases.
Which has better reviews, Lessen PM or FAST Field Service?
Lessen PM is rated higher. Lessen PM averages 5.0 out of 5 from 6 ratings, while FAST Field Service averages 4.0 from 6 ratings.
Do Lessen PM or FAST Field Service have ads?
Neither Lessen PM nor FAST Field Service shows ads.
Which is updated more often, Lessen PM or FAST Field Service?
Lessen PM ships an update every 6 weeks, and FAST Field Service every 5 weeks. Most recently, Lessen PM was updated on October 24, 2026 and FAST Field Service on October 27, 2026.

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