Comparison

Boostaff vs Simple Invoice PDF

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

Head to head
About

Boostaff

This app connects businesses needing immediate staff coverage with verified professionals in their area. Businesses can post shifts in seconds and track staff in real-time, while workers can find flexible job opportunities and manage their earnings.

Highlights
  • Post shifts in seconds
  • Get matched with verified workers
  • Real-time staff tracking
  • Session-based timekeeping
  • Browse and accept open shifts
  • Secure job code confirmation
  • Rate workers after shifts
Features
Read full description

Boost Staff is on-demand staffing, reimagined. We bring the speed of the gig economy to hospitality and staffing — connecting businesses that need shift coverage now with verified, ready-to-work professionals nearby. Think of it as the fastest way to fill a shift, or to get paid for one. FOR BUSINESSES Post a shift in seconds — line cooks, event servers, warehouse associates, and more. Qualified workers in your area are notified instantly. Watch your roster fill, monitor clocked-in staff in real time, and let session-based tracking handle the timekeeping for you. • Post shifts with location, rate, skills, and headcount • Get matched with verified workers in minutes • Generate a secure Job Code to confirm arrivals on-site • Track active sessions live from your dashboard • Review hours and rate workers after every shift FOR WORKERS Browse open shifts near you, accept the ones that fit your schedule, and clock in with a simple code. Flexible work, transparent hours, and earnings you can track shift by shift. • Find shifts filtered by location and your skills • Accept work on your own terms — no commitment • Clock in securely with the on-site Job Code • Track hours with a live, tamper-proof timer • See your earnings break down shift by shift HOW IT WORKS Every shift runs on a simple, accountable cycle: an employer posts the job, a worker accepts it, both sides confirm arrival with a secure Job Code handshake, a synced timer tracks the session, and hours are finalized when the shift ends. No paper timesheets, no guesswork, no disputes. BUILT ON TRUST Workers complete identity verification and background screening before they ever take a shift. Sensitive data is encrypted, sessions are tracked server-side to prevent time fraud, and every Job Code is single-use and time-limited. Whether you're a manager scrambling to cover a busy night or a worker looking for flexible income, Boost Staff gets you there faster. Download Boost Staff and fill your next shift.

About

Simple Invoice PDF

Features
Read full description

Create a professional invoice, receipt, or estimate in 30 seconds — and send it as a clean PDF. No account. No subscription. No limits. Tired of invoice apps that make you sign up, push you into a cloud, and then cap how many documents you can send — even on a paid plan? Simple Invoice PDF is the opposite: open the app, fill in a few fields, share the PDF. Done. WHY FREELANCERS CHOOSE IT • Unlimited documents — free, forever. No monthly caps, no "3 invoices per month" tricks. • No developer account or server upload. Your data stays on your device unless you choose Pro iCloud Backup or explicitly share a PDF. • Reliable export & print. PDFs are generated with the system print engine — what you see is exactly what your client gets, in email, messages, or on paper. • Fast input. Only the fields that matter are required. Repeat clients are one tap away. WHAT'S INSIDE • Invoices, receipts, and estimates with automatic numbering • Line items with quantities, rates, and automatic totals • Tax rate and notes • Client list — add once, reuse forever • Business profile: your details, logo, currency, tax defaults • PDF preview before sending • Share anywhere: email, messages, print, save to Files • Professional templates for different kinds of work FREE VS PRO The free version is fully functional and unlimited — every document simply carries a small "Made with Simple Invoice PDF" line. Pro is a single one-time purchase (not a subscription!) and unlocks: • PDFs without the watermark • Your logo on documents • Premium templates • Brand colors, signatures, payment details and QR codes • Automatic iCloud backup with manual restore Pay once, keep it forever. That's it. PRIVATE BY DESIGN Simple Invoice PDF works offline with no registration and no tracking. Documents leave your device only when you explicitly share a PDF or use the optional Pro backup stored in your private iCloud container. Perfect for freelancers, contractors, handymen, cleaners, tutors, photographers, designers, small shops — anyone who needs to bill a client without fighting an app. Terms of Use: https://simple-invoice-pdf.vercel.app/terms.html Download it, make your first invoice, and see how simple invoicing should be.

Screenshots

Boostaff3 screens
Simple Invoice PDF4 screens

Verdict

The call

The clearest difference is in-app purchases: Boostaff at none against Simple Invoice PDF's 1. Boostaff also leads on iOS requirement (15.1 vs 18.6). On price, update cadence, 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. Simple Invoice PDF sells 1 one-off in-app purchase. Boostaff asks for nothing beyond the download.

UpkeepUpdate frequency

Boostaff ships an update every 2 weeks, Simple Invoice PDF fortnightly. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

Scorecard2 real differences · 8 level
Boostaff versus Simple Invoice PDF: the parameters behind the verdict, then further details
ParameterBoostaffSimple Invoice PDF
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 2 weeks — betterFortnightly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better18.6
Further details — not scored
Size64 MB2 MB
Age rating17+4+
Developermercy onuohaSerghei Eschin

In-app purchases

None

Boostaff

No in-app purchases

1 purchases

Simple Invoice PDF

One-time1
  • Simple Invoice Pro$9.99

Questions

Is Boostaff free?
Boostaff is free to download, with no in-app purchases.
Is Simple Invoice PDF free?
Simple Invoice PDF is free to download, with in-app purchases available.
Do Boostaff or Simple Invoice PDF have ads?
Neither Boostaff nor Simple Invoice PDF shows ads.
Which is updated more often, Boostaff or Simple Invoice PDF?
Boostaff ships an update every 2 weeks, and Simple Invoice PDF fortnightly. Most recently, Boostaff was updated on October 31, 2026 and Simple Invoice PDF on November 5, 2026.

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