Comparison

Airspace Routes vs EPA 608 Certification Prep

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

Head to head
About

Airspace Routes

This app connects couriers with on-demand delivery opportunities for critical shipments. Drivers can manage their availability, accept assignments, and navigate routes efficiently through a user-friendly interface.

Highlights
  • On-demand courier assignments
  • Driver availability management
  • Route navigation
  • Accept delivery jobs
  • User-friendly interface
Features
Read full description

Airspace is a revolutionary on-demand courier specializing in critical shipment needs. Our mobile app allows Airspace drivers to choose availability, accept assignments, follow routes via a simple and straightforward interface.

About

EPA 608 Certification Prep

Features
Read full description

Need your EPA 608 certification to handle refrigerants on the job? Overwhelmed by Core, Type I, II, III, and Universal sections? EPA 608 Certification Prep gives you 150 practice questions with clear explanations and 40 CFR citations on most regulatory items — built so you can prepare for your certification exam with confidence. WHAT'S INCLUDED: Practice Mode - 150 multiple-choice questions across 21 subtopics, every answer paired with an explanation and, where applicable, a 40 CFR Part 82 citation. - Drill into Core, Type I, Type II, or Type III separately, or sweep across the whole bank. - Track your accuracy by category to find weak areas before the real test. Mock Exams - Timed mock exams for Core, Type I, Type II, and Type III. - Question grid + flag-for-review during the exam, just like the official testing format. - Diagnostic results with a section-by-section breakdown and pass/fail readout against the EPA cutoffs. Reference Library - Refrigerants: HFC / HCFC / HFO / blends with ASHRAE class, GWP, ODP, and replacement charts. - Regulations: 40 CFR Part 82 Subparts A through F, summarized with section anchors. - Recovery Equipment: high-pressure, low-pressure, and very-low-pressure machine requirements. - Leak Repair: trigger thresholds, repair timelines, verification testing. - Safety: PPE, refrigerant exposure limits, oxygen-deprivation and decomposition products. WHO IS IT FOR: - HVAC apprentices preparing for EPA 608 Certification - Working technicians refreshing for Universal upgrade or re-certification - Vocational students and trade-school attendees - Service managers brushing up on current regulation WHY TECHS LOVE IT: - Fully offline — works in basements, attics, equipment rooms, and job sites with no signal. - No ads, no tracking, no subscription traps. - Real CFR citations on every answer so you can verify the source. - One-time unlock for the full question bank, every mock exam, and the full reference library. - Clean UI designed for one-handed use on a phone in a service van. ONE-TIME UNLOCK: Unlock Full Certification Prep is a single $14.99 USD non-consumable in-app purchase. It unlocks all 150 questions, every mock exam, and the full reference library forever on your Apple ID. No recurring fees. Practice questions are modeled on the EPA 608 certification exam format and built around the public 40 CFR Part 82 regulations. This app is a study aid; certification is awarded by an EPA-approved test administrator. Download EPA 608 Certification Prep and put your study sessions in your pocket.

Screenshots

Airspace Routes3 screens
EPA 608 Certification Prep4 screens

Verdict

The call

The clearest difference is in-app purchases: Airspace Routes at none against EPA 608 Certification Prep's 1. Airspace Routes also leads on iOS requirement (15.5 vs 17.0). EPA 608 Certification Prep's advantage is update cadence (every 2 weeks vs every 5 weeks). On price, ads and device support 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. EPA 608 Certification Prep sells 1 one-off in-app purchase. Airspace Routes asks for nothing beyond the download.

UpkeepUpdate frequency

Airspace Routes ships an update every 5 weeks, EPA 608 Certification Prep every 2 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
Airspace Routes versus EPA 608 Certification Prep: the parameters behind the verdict, then further details
ParameterAirspace RoutesEPA 608 Certification Prep
PriceFreeFree
Rating2.4 (23 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings23 — better—
Update frequencyEvery 5 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.5 — better17.0
Further details — not scored
Size155 MB3 MB
Age rating4+4+
DeveloperN & E DELIVERY, LLCShanghai Sheyuan Network Technology Co., Ltd.

In-app purchases

None

Airspace Routes

No in-app purchases

1 purchases

EPA 608 Certification Prep

One-time1
  • Unlock Full Certification Prep$9.99

Questions

Is Airspace Routes free?
Airspace Routes is free to download, with no in-app purchases.
Is EPA 608 Certification Prep free?
EPA 608 Certification Prep is free to download, with in-app purchases available.
Do Airspace Routes or EPA 608 Certification Prep have ads?
Neither Airspace Routes nor EPA 608 Certification Prep shows ads.
Which is updated more often, Airspace Routes or EPA 608 Certification Prep?
Airspace Routes ships an update every 5 weeks, and EPA 608 Certification Prep every 2 weeks. Most recently, Airspace Routes was updated on November 5, 2026 and EPA 608 Certification Prep on October 31, 2026.

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