SalesCalc vs Invoice Flow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SalesCalc
Quickly and accurately calculate essential sales figures like gross margin and markup percentage without needing to remember complex formulas. This iPhone app simplifies deal-making by providing instant results for common sales calculations.
- Calculate Gross Margin
- Calculate Markup Percentage
- Calculate Percent Change
- Calculate Percent Total
- Simple input fields
- Shake to clear fields
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SalesCalc is designed to help you to create irresistible deals - quickly - efficiently - accurately without having to remember formulas and equations Anyone can use it - it's really so simple. All you need is an iPhone. If you need to calculate: - Gross Margin - Markup % - Percent Change - Percent Total then SalesCalc is the App for you. Most people in sales and purchasing rely on their favorite spreadsheets when they want to calculate margins, markups or discounts. Some folks have memorized the formulas and use a calculator for the task but we think that the iPhone presents an easier way to get the answers you need to close a deal quickly. Instead of having to remember formulas - you'll never make a mistake with SalesCalc. SalesCalc will deliver your answer in under a second, all you need to do is input numerical values into 2 of the 3 fields. To clear the fields, just shake the iPhone. SalesCalc puts a few of the most commonly used sales related calculations in the palm of your hand so the next time you are in deal making mode - reach out for SalesCalc and put together the best deal ever. Here's to your Sales Success... Some Definitions: - Gross Margin is the percentage of the selling price that can be applied toward covering your operating costs and profit. Basically, 20% gross profit margin means that for every dollar generated in sales, you have 20 cents left over to cover basic operating costs and profit. Larger gross margins are generally good for companies, with the exception of discount retailers which need to show that operation efficiency and financing allows them to operate with smaller margins. Since the Margin is the percentage of the price that is markup, it can never exceed 100% - Cost of Goods Sold includes variable and fixed costs directly linked to the product, such as material and labor. It does not include indirect fixed costs like office expenses, rent, administrative costs, etc. - Markup also known as Cost-Plus-Markup or Markup by Cost is the difference between the selling price and the cost divided by the cost of goods sold expressed as a percent. The initial markup of a retail product is also known as IMU. - Markdowns or Discounts are used to generate sales and or clear inventory and are usually expressed as a percentage of the Original Price. - Initial pricing is an extremely important step in merchandising. For retailers that use a traditional calculation, such as Keystoning, which is doubling cost to arrive at the selling price (100% IMU = 50% profit margin), this may or may not be adequate to be profitable, particularly after markdowns are taken. In reality, there are numerous examples of products that cannot be sold profitably, but need to be in the store to satisfy Customer needs. Therefore, other products need to be sold at higher MU%'s to cover the net losses of the products that lose money. SalesCalc gives you a few ways to price your products so that you can calculate your profitability using the method that best fits your business model.
Invoice Flow
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Invoice Flow is the fastest way to create professional invoices right on your iPhone or iPad. Designed for freelancers, small business owners, and independent contractors, the app helps you manage clients, items, taxes, and payments in one simple, private workspace. Your data stays on your device - safe, private, and fully under your control. No account and no login required. Features: • Create invoices quickly with client, item, tax, and payment details • Add notes, business information, and your logo for a professional look • Generate clean PDF invoices ready to send or share • Track estimates, expenses, and time • Export data (PDF/JSON) via the iOS share sheet • Store everything locally on your device • Works seamlessly offline - no login or internet required Invoice Flow Pro: The core app is free to use. Upgrade to Pro for unlimited invoices, automated recurring invoices, receipt scanning, CSV export, and custom templates. Pro is an auto-renewable subscription available monthly or yearly. Who it's for: • Freelancers and consultants • Small businesses and startups • Anyone who needs a simple, reliable invoicing solution Why choose Invoice Flow? Simple: minimal setup, easy to use Private: no accounts, no cloud, your data stays with you Your invoices, your data, your flow. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: Invoice Flow at Free against SalesCalc's $4.99. SalesCalc's advantage is chart position (#193 vs unranked) and iOS requirement (8.0 vs 18.0). On update cadence, ads, in-app purchases 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
Invoice Flow is free to download; SalesCalc costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
SalesCalc ships an update monthly, Invoice Flow every 3 weeks. Both last shipped on October 15, 2026.
| Parameter | SalesCalc | Invoice Flow |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 56.7% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Best chart rank | #193 — better | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 8.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 1 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | On-Core Software LLC | Alice-Georgiana TURCANU |
In-app purchases
SalesCalc
No in-app purchases
Invoice Flow
No in-app purchases







